Added some defns and some RD links

@@ -127,7 +127,6 @@ ep-activity:DailyDrillingActivityToStatus
 
 
 ep-activity:DailyProductionActivity
 ep-activity:DailyProductionActivity
       rdf:type owl:Class ;
       rdf:type owl:Class ;
-      rdfs:comment "not used in the MPR"^^xsd:string ;
       rdfs:label "daily production activity"^^xsd:string ;
       rdfs:label "daily production activity"^^xsd:string ;
       rdfs:subClassOf ep-activity:ProductionActivity .
       rdfs:subClassOf ep-activity:ProductionActivity .
 
 
@@ -402,19 +401,16 @@ ep-activity:MonthlyDrillingActivity
 
 
 ep-activity:MonthlyProductionActivity
 ep-activity:MonthlyProductionActivity
       rdf:type owl:Class ;
       rdf:type owl:Class ;
-      rdfs:comment "not used in the MPR"^^xsd:string ;
       rdfs:label "monthly production activity"^^xsd:string ;
       rdfs:label "monthly production activity"^^xsd:string ;
       rdfs:subClassOf ep-activity:ProductionActivity .
       rdfs:subClassOf ep-activity:ProductionActivity .
 
 
 ep-activity:OffshoreActivity
 ep-activity:OffshoreActivity
       rdf:type owl:Class ;
       rdf:type owl:Class ;
-      rdfs:comment "not used in the DDR"^^xsd:string ;
       rdfs:label "Offshore activity"^^xsd:string ;
       rdfs:label "Offshore activity"^^xsd:string ;
       rdfs:subClassOf ep-activity:Activity .
       rdfs:subClassOf ep-activity:Activity .
 
 
 ep-activity:OffshoreWellActivity
 ep-activity:OffshoreWellActivity
       rdf:type owl:Class ;
       rdf:type owl:Class ;
-      rdfs:comment "not used in the DDR"^^xsd:string ;
       rdfs:label "Offshore well activity"^^xsd:string ;
       rdfs:label "Offshore well activity"^^xsd:string ;
       rdfs:subClassOf ep-activity:OffshoreActivity ;
       rdfs:subClassOf ep-activity:OffshoreActivity ;
       rdfs:subClassOf
       rdfs:subClassOf
@@ -485,7 +481,6 @@ ep-activity:ProductionActivity
 
 
 ep-activity:ProductionActivityToDate
 ep-activity:ProductionActivityToDate
       rdf:type owl:Class ;
       rdf:type owl:Class ;
-      rdfs:comment "not used in the MPR"^^xsd:string ;
       rdfs:label "production activity to date"^^xsd:string ;
       rdfs:label "production activity to date"^^xsd:string ;
       rdfs:subClassOf ep-activity:ProductionActivity .
       rdfs:subClassOf ep-activity:ProductionActivity .
 
 
@@ -517,7 +512,6 @@ ep-activity:WeeklyDrillingActivity
 
 
 ep-activity:WeeklyProductionActivity
 ep-activity:WeeklyProductionActivity
       rdf:type owl:Class ;
       rdf:type owl:Class ;
-      rdfs:comment "not used in the MPR"^^xsd:string ;
       rdfs:label "weekly production activity"^^xsd:string ;
       rdfs:label "weekly production activity"^^xsd:string ;
       rdfs:subClassOf ep-activity:ProductionActivity .
       rdfs:subClassOf ep-activity:ProductionActivity .
 
 
@@ -955,7 +949,6 @@ ep-activity:drillingOperator
 
 
 ep-activity:durationOfDrilling
 ep-activity:durationOfDrilling
       rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
       rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
-      rdfs:comment "not used in the DDR"^^xsd:string ;
       rdfs:domain ep-activity:DrillingActivity ;
       rdfs:domain ep-activity:DrillingActivity ;
       rdfs:label "duration of drilling"^^xsd:string ;
       rdfs:label "duration of drilling"^^xsd:string ;
       rdfs:range ep-core:TimeDuration .
       rdfs:range ep-core:TimeDuration .
@@ -1000,13 +993,11 @@ ep-activity:fluidProducedByWellTest
 
 
 ep-activity:hasCasingLinerTubing
 ep-activity:hasCasingLinerTubing
       rdf:type owl:FunctionalProperty , owl:ObjectProperty ;
       rdf:type owl:FunctionalProperty , owl:ObjectProperty ;
-      rdfs:comment "not used in the DDR"^^xsd:string ;
       rdfs:domain ep-activity:WellStimulation ;
       rdfs:domain ep-activity:WellStimulation ;
       rdfs:label "has Casing/Liner/Tubing"^^xsd:string .
       rdfs:label "has Casing/Liner/Tubing"^^xsd:string .
 
 
 ep-activity:hasCasingString
 ep-activity:hasCasingString
       rdf:type owl:ObjectProperty ;
       rdf:type owl:ObjectProperty ;
-      rdfs:comment "not used in the DDR"^^xsd:string ;
       rdfs:label "has casing string"^^xsd:string .
       rdfs:label "has casing string"^^xsd:string .
 
 
 ep-activity:hasChokeValve
 ep-activity:hasChokeValve
@@ -1034,12 +1025,10 @@ ep-activity:hasInflowLocation
 
 
 ep-activity:hasSubActivity
 ep-activity:hasSubActivity
       rdf:type owl:ObjectProperty ;
       rdf:type owl:ObjectProperty ;
-      rdfs:comment "not used in the DDR"^^xsd:string ;
       rdfs:label "has sub activity"^^xsd:string .
       rdfs:label "has sub activity"^^xsd:string .
 
 
 ep-activity:hasWellTestChoke
 ep-activity:hasWellTestChoke
       rdf:type owl:FunctionalProperty , owl:ObjectProperty ;
       rdf:type owl:FunctionalProperty , owl:ObjectProperty ;
-      rdfs:comment "not used in the DDR"^^xsd:string ;
       rdfs:domain ep-activity:WellTest ;
       rdfs:domain ep-activity:WellTest ;
       rdfs:label "has well test choke"^^xsd:string ;
       rdfs:label "has well test choke"^^xsd:string ;
       rdfs:range <http://www.reportinghub.no/ep/schema/equipment#WellTestChoke> .
       rdfs:range <http://www.reportinghub.no/ep/schema/equipment#WellTestChoke> .

-# baseURI: http://www.reportinghub.no/ep/schema/1.0/equipment
-# imports: http://www.reportinghub.no/ep/schema/1.0/core
-# imports: http://www.reportinghub.no/ep/schema/1.0/organization
-# imports: http://www.reportinghub.no/ep/schema/1.0/well
-
-@prefix ep-core:  <http://www.reportinghub.no/ep/schema/core#> .
-@prefix ep-eqt:  <http://www.reportinghub.no/ep/schema/equipment#> .
-@prefix ep-fac:  <http://www.reportinghub.no/ep/schema/facility#> .
-@prefix owl:     <http://www.w3.org/2002/07/owl#> .
-@prefix rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
-@prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#> .
-@prefix xsd:     <http://www.w3.org/2001/XMLSchema#> .
-
-<http://www.reportinghub.no/ep/schema/1.0/equipment>
-      rdf:type owl:Ontology ;
-      owl:imports <http://www.reportinghub.no/ep/schema/1.0/well> , <http://www.reportinghub.no/ep/schema/1.0/organization> , <http://www.reportinghub.no/ep/schema/1.0/core> ;
-      owl:versionInfo "0.1.0"^^xsd:string .
-
-ep-core:PhysicalThing
-      rdfs:comment "Equivalent to ISO 15926-2 Possible Individual - DL"^^xsd:string .
-
-ep-eqt:BlowOutPreventer
-      rdf:type owl:Class ;
-      rdfs:comment "equipment that is a blow out preventer"^^xsd:string ;
-      rdfs:label "blow out preventer"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:Equipment .
-
-ep-eqt:Casing
-      rdf:type owl:Class , ep-eqt:CasingLinerTubingType ;
-      rdfs:label "Casing"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:CasingLinerTubing ;
-      owl:disjointWith ep-eqt:Tubing , ep-eqt:Liner .
-
-ep-eqt:CasingLinerTubing
-      rdf:type owl:Class ;
-      rdfs:label "casing/liner/tubing"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:Equipment ;
-      owl:equivalentClass
-              [ rdf:type owl:Class ;
-                owl:unionOf (ep-eqt:Casing ep-eqt:Liner ep-eqt:Tubing)
-              ] .
-
-ep-eqt:CasingLinerTubingType
-      rdf:type rdfs:Class ;
-      rdfs:label "casing/liner/tubing type"^^xsd:string ;
-      rdfs:subClassOf owl:Class .
-
-ep-eqt:CasingRoleType
-      rdf:type rdfs:Class ;
-      rdfs:label "casing role type"^^xsd:string ;
-      rdfs:subClassOf owl:Class .
-
-ep-eqt:CasingString
-      rdf:type owl:Class ;
-      rdfs:label "casing string"^^xsd:string ;
-      rdfs:subClassOf <http://www.reportinghub.no/ep/schema/well#SpatialPartOfAWellBore> , ep-eqt:Casing .
-
-ep-eqt:ChokeValve
-      rdf:type owl:Class ;
-      rdfs:comment "valve that is a choke valve"^^xsd:string ;
-      rdfs:label "choke valve"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:Equipment .
-
-ep-eqt:ClassOfDrillBitBySize
-      rdf:type rdfs:Class ;
-      rdfs:label "class of drill bit by size"^^xsd:string ;
-      rdfs:subClassOf owl:Class .
-
-ep-eqt:ClassOfSupplyDefinedByAManufacturer
-      rdf:type rdfs:Class ;
-      rdfs:label "manufacturer model"^^xsd:string ;
-      rdfs:subClassOf owl:Class .
-
-ep-eqt:Compressor
-      rdf:type owl:Class ;
-      rdfs:comment "equipment that is a compressor"^^xsd:string ;
-      rdfs:label "compressor"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:Equipment .
-
-ep-eqt:Controller-lift
-      rdf:type owl:Class ;
-      rdfs:comment "deprecated - same as ep-prodeqt:Controller"^^xsd:string ;
-      rdfs:label "controller - lift"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:Equipment .
-
-ep-eqt:DrillBit
-      rdf:type owl:Class ;
-      rdfs:label "drill bit"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:Equipment .
-
-ep-eqt:DrillBitForWellBore
-      rdf:type owl:Class ;
-      rdfs:label "drill bit for wellbore"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:DrillBit .
-
-ep-eqt:DullGrade
-      rdf:type rdfs:Class ;
-      rdfs:label "dull grade"^^xsd:string ;
-      rdfs:subClassOf owl:Class .
-
-ep-eqt:Equipment
-      rdf:type owl:Class ;
-      rdfs:label "Equipment"^^xsd:string ;
-      rdfs:subClassOf ep-core:PhysicalObject .
-
-ep-eqt:InnerBarrel
-      rdf:type owl:Class ;
-      rdfs:label "inner barrel"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:Equipment .
-
-ep-eqt:InnerBarrel-aluminum
-      rdf:type owl:Class , ep-eqt:InnerBarrelType ;
-      rdfs:label "inner barrel - aluminum"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:InnerBarrel ;
-      owl:disjointWith ep-eqt:InnerBarrel-gel , ep-eqt:InnerBarrel-fiberglass .
-
-ep-eqt:InnerBarrel-fiberglass
-      rdf:type owl:Class , ep-eqt:InnerBarrelType ;
-      rdfs:label "inner barrel - fiberglass"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:InnerBarrel ;
-      owl:disjointWith ep-eqt:InnerBarrel-gel , ep-eqt:InnerBarrel-aluminum .
-
-ep-eqt:InnerBarrel-gel
-      rdf:type owl:Class , ep-eqt:InnerBarrelType ;
-      rdfs:label "inner barrel - gel"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:InnerBarrel ;
-      owl:disjointWith ep-eqt:InnerBarrel-fiberglass , ep-eqt:InnerBarrel-aluminum .
-
-ep-eqt:InnerBarrelType
-      rdf:type rdfs:Class ;
-      rdfs:label "inner barrel type"^^xsd:string ;
-      rdfs:subClassOf owl:Class .
-
-ep-eqt:IntermediateCasing
-      rdf:type owl:Class , ep-eqt:CasingRoleType ;
-      rdfs:label "intermediate casing"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:Casing ;
-      owl:disjointWith ep-eqt:TopCasing , ep-eqt:ProductionCasing .
-
-ep-eqt:KellyBushing
-      rdf:type owl:Class ;
-      rdfs:label "kelly bushing"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:Equipment .
-
-ep-eqt:LastCasingOfAWellBore
-      rdf:type owl:Class ;
-      rdfs:label "last casing of a wellbore"^^xsd:string ;
-      rdfs:subClassOf <http://www.reportinghub.no/ep/schema/well#SpatialPartOfAWellBore> , ep-eqt:Casing .
-
-ep-eqt:Liner
-      rdf:type owl:Class , ep-eqt:CasingLinerTubingType ;
-      rdfs:label "Liner"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:CasingLinerTubing ;
-      owl:disjointWith ep-eqt:Tubing , ep-eqt:Casing .
-
-ep-eqt:Manifold
-      rdf:type owl:Class ;
-      rdfs:label "manifold"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:Equipment .
-
-ep-eqt:Manifold-injection
-      rdf:type owl:Class ;
-      rdfs:label "manifold - injection"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:Manifold .
-
-ep-eqt:Manifold-production
-      rdf:type owl:Class ;
-      rdfs:label "manifold - production"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:Manifold .
-
-ep-eqt:PipeOutsideDiameterAPI_5CTClass
-      rdf:type rdfs:Class ;
-      rdfs:label "pipe outside diameter API 5CT class"^^xsd:string ;
-      rdfs:subClassOf owl:Class .
-
-ep-eqt:PipeWeightAPI_5CTClass
-      rdf:type rdfs:Class ;
-      rdfs:label "Pipe weight API 5CT class"^^xsd:string ;
-      rdfs:subClassOf owl:Class .
-
-ep-eqt:ProductionCasing
-      rdf:type owl:Class , ep-eqt:CasingRoleType ;
-      rdfs:label "production casing"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:Casing ;
-      owl:disjointWith ep-eqt:TopCasing , ep-eqt:IntermediateCasing .
-
-ep-eqt:Separator
-      rdf:type owl:Class ;
-      rdfs:comment "equipment that is a separator"^^xsd:string ;
-      rdfs:label "separator"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:Equipment .
-
-ep-eqt:SteelGradeAPI_5CTClass
-      rdf:type rdfs:Class ;
-      rdfs:label "Steel grade API 5CT class"^^xsd:string ;
-      rdfs:subClassOf owl:Class .
-
-ep-eqt:Tank
-      rdf:type owl:Class ;
-      rdfs:comment "equipment that is a tank"^^xsd:string ;
-      rdfs:label "tank"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:Equipment .
-
-ep-eqt:TopCasing
-      rdf:type owl:Class , ep-eqt:CasingRoleType ;
-      rdfs:label "top casing"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:Casing ;
-      owl:disjointWith ep-eqt:ProductionCasing , ep-eqt:IntermediateCasing .
-
-ep-eqt:Tubing
-      rdf:type owl:Class , ep-eqt:CasingLinerTubingType ;
-      rdfs:label "Tubing"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:CasingLinerTubing ;
-      owl:disjointWith ep-eqt:Liner , ep-eqt:Casing .
-
-ep-eqt:TubularConnectionClass
-      rdf:type rdfs:Class ;
-      rdfs:label "tubular connection class"^^xsd:string ;
-      rdfs:subClassOf owl:Class .
-
-ep-eqt:WellBoreLoggingTool
-      rdf:type owl:Class ;
-      rdfs:label "well bore logging tool"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:Equipment .
-
-ep-eqt:WellTestChoke
-      rdf:type owl:Class ;
-      rdfs:comment "equipment that is a well test choke manifold"^^xsd:string ;
-      rdfs:label "well test choke"^^xsd:string ;
-      rdfs:subClassOf ep-eqt:Equipment .
-
-ep-eqt:chokeOrificeSize
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:comment "diameterof the choke orifice within a well test choke manifold"^^xsd:string ;
-      rdfs:domain ep-eqt:WellTestChoke ;
-      rdfs:label "choke orifice size"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-eqt:codeAssignedByAManufacturer
-      rdf:type owl:DatatypeProperty ;
-      rdfs:domain ep-eqt:ClassOfSupplyDefinedByAManufacturer ;
-      rdfs:label "code assigned by manufacturer"^^xsd:string .
-
-ep-eqt:diameterOfACasing
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-eqt:Casing ;
-      rdfs:label "diameter of a casing"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-eqt:diameterOfDrillBit
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-eqt:DrillBit ;
-      rdfs:label "diameter of drill bit"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-eqt:elevationOfKellyBushing
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-eqt:KellyBushing ;
-      rdfs:label "elevation of kelly bushing"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-eqt:hasTubularConnectionClass
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty ;
-      rdfs:domain ep-eqt:CasingLinerTubing ;
-      rdfs:label "has tubular connection class"^^xsd:string ;
-      rdfs:range ep-eqt:TubularConnectionClass .
-
-ep-eqt:insideDiameterOfATubular
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-eqt:CasingLinerTubing ;
-      rdfs:label "inside diameter of a tubular"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-eqt:lengthOfInnerBarrel
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-eqt:InnerBarrel ;
-      rdfs:label "length of inner barrel"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-eqt:manufacturedBy
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty ;
-      rdfs:domain ep-eqt:Equipment ;
-      rdfs:label "manaufactured by"^^xsd:string ;
-      rdfs:range <http://www.reportinghub.no/ep/schema/organization#Organization> .
-
-ep-eqt:maximumPressureForBlowOutPreventer
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-eqt:BlowOutPreventer ;
-      rdfs:label "maximum pressure for blow out preventer"^^xsd:string ;
-      rdfs:range ep-core:Pressure .
-
-ep-eqt:maximumPressureForChokeValve
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-eqt:ChokeValve ;
-      rdfs:label "maximum pressure for choke valve"^^xsd:string ;
-      rdfs:range ep-core:Pressure .
-
-ep-eqt:outsideDiameterOfATubular
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-eqt:CasingLinerTubing ;
-      rdfs:label "outside diameter of a tubular"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-eqt:stringLengthOfATubular
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-eqt:CasingLinerTubing ;
-      rdfs:label "string length of a tubular"^^xsd:string ;
-      rdfs:range ep-core:Length .
+# baseURI: http://www.reportinghub.no/ep/schema/1.0/equipment
+# imports: http://www.reportinghub.no/ep/schema/1.0/core
+# imports: http://www.reportinghub.no/ep/schema/1.0/organization
+# imports: http://www.reportinghub.no/ep/schema/1.0/well
+
+@prefix ep-core:  <http://www.reportinghub.no/ep/schema/core#> .
+@prefix ep-eqt:  <http://www.reportinghub.no/ep/schema/equipment#> .
+@prefix ep-fac:  <http://www.reportinghub.no/ep/schema/facility#> .
+@prefix owl:     <http://www.w3.org/2002/07/owl#> .
+@prefix rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+@prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix xsd:     <http://www.w3.org/2001/XMLSchema#> .
+
+<http://www.reportinghub.no/ep/schema/1.0/equipment>
+      rdf:type owl:Ontology ;
+      owl:imports <http://www.reportinghub.no/ep/schema/1.0/core> , <http://www.reportinghub.no/ep/schema/1.0/organization> , <http://www.reportinghub.no/ep/schema/1.0/well> ;
+      owl:versionInfo "0.1.0"^^xsd:string .
+
+ep-core:PhysicalThing
+      rdfs:comment "Equivalent to ISO 15926-2 Possible Individual - DL"^^xsd:string .
+
+ep-eqt:BlowOutPreventer
+      rdf:type owl:Class ;
+      rdfs:comment "equipment that is a blow out preventer"^^xsd:string ;
+      rdfs:label "blow out preventer"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:Equipment .
+
+ep-eqt:Casing
+      rdf:type ep-eqt:CasingLinerTubingType , owl:Class ;
+      rdfs:comment "equipment that is a casing"^^xsd:string ;
+      rdfs:label "Casing"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:CasingLinerTubing ;
+      owl:disjointWith ep-eqt:Liner , ep-eqt:Tubing .
+
+ep-eqt:CasingLinerTubing
+      rdf:type owl:Class ;
+      rdfs:comment "equipment that is either a casing, a liner or tubing"^^xsd:string ;
+      rdfs:label "casing/liner/tubing"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:Equipment ;
+      owl:equivalentClass
+              [ rdf:type owl:Class ;
+                owl:unionOf (ep-eqt:Casing ep-eqt:Liner ep-eqt:Tubing)
+              ] .
+
+ep-eqt:CasingLinerTubingType
+      rdf:type rdfs:Class ;
+      rdfs:comment "class of casing, liner or tubing on the basis of whether or not it is casing, liner or tubing"^^xsd:string ;
+      rdfs:label "casing/liner/tubing type"^^xsd:string ;
+      rdfs:subClassOf owl:Class .
+
+ep-eqt:CasingRoleType
+      rdf:type rdfs:Class ;
+      rdfs:comment "class of casing on the basis of its role as intermediate, production or top"^^xsd:string ;
+      rdfs:label "casing role type"^^xsd:string ;
+      rdfs:subClassOf owl:Class .
+
+ep-eqt:CasingString
+      rdf:type owl:Class ;
+      rdfs:label "casing string"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:Casing , <http://www.reportinghub.no/ep/schema/well#SpatialPartOfAWellBore> .
+
+ep-eqt:ChokeValve
+      rdf:type owl:Class ;
+      rdfs:comment "valve that is a choke valve"^^xsd:string ;
+      rdfs:label "choke valve"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:Equipment .
+
+ep-eqt:ClassOfDrillBitBySize
+      rdf:type rdfs:Class ;
+      rdfs:comment "class of drill bit on the basis of size"^^xsd:string ;
+      rdfs:label "class of drill bit by size"^^xsd:string ;
+      rdfs:subClassOf owl:Class .
+
+ep-eqt:ClassOfSupplyDefinedByAManufacturer
+      rdf:type rdfs:Class ;
+      rdfs:comment "class of equipment that is define by a manufacturer as a possible supply"^^xsd:string ;
+      rdfs:label "manufacturer model"^^xsd:string ;
+      rdfs:subClassOf owl:Class .
+
+ep-eqt:Compressor
+      rdf:type owl:Class ;
+      rdfs:comment "equipment that is a compressor"^^xsd:string ;
+      rdfs:label "compressor"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:Equipment .
+
+ep-eqt:Controller-lift
+      rdf:type owl:Class ;
+      rdfs:comment "deprecated - same as ep-prodeqt:Controller"^^xsd:string ;
+      rdfs:label "controller - lift"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:Equipment .
+
+ep-eqt:DrillBit
+      rdf:type owl:Class ;
+      rdfs:comment "equipment that is a drill bit"^^xsd:string ;
+      rdfs:label "drill bit"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:Equipment .
+
+ep-eqt:DrillBitForWellBore
+      rdf:type owl:Class ;
+      rdfs:comment "drill bit whilst it is used for a single wellbore"^^xsd:string ;
+      rdfs:label "drill bit for wellbore"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:DrillBit .
+
+ep-eqt:DullGrade
+      rdf:type rdfs:Class ;
+      rdfs:comment "class of drill bit on the basis of its dull grade"^^xsd:string ;
+      rdfs:label "dull grade"^^xsd:string ;
+      rdfs:subClassOf owl:Class .
+
+ep-eqt:Equipment
+      rdf:type owl:Class ;
+      rdfs:comment "physical object that has been manufactured and that is or can be part of a facility or well"^^xsd:string ;
+      rdfs:label "Equipment"^^xsd:string ;
+      rdfs:subClassOf ep-core:PhysicalObject .
+
+ep-eqt:InnerBarrel
+      rdf:type owl:Class ;
+      rdfs:comment "equipment that is an inner barrel"^^xsd:string ;
+      rdfs:label "inner barrel"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:Equipment .
+
+ep-eqt:InnerBarrel-aluminum
+      rdf:type ep-eqt:InnerBarrelType , owl:Class ;
+      rdfs:comment "inner barrel that is aluminium"^^xsd:string ;
+      rdfs:label "inner barrel - aluminum"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:InnerBarrel ;
+      owl:disjointWith ep-eqt:InnerBarrel-fiberglass , ep-eqt:InnerBarrel-gel .
+
+ep-eqt:InnerBarrel-fiberglass
+      rdf:type ep-eqt:InnerBarrelType , owl:Class ;
+      rdfs:comment "inner barrel that is fibreglass"^^xsd:string ;
+      rdfs:label "inner barrel - fiberglass"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:InnerBarrel ;
+      owl:disjointWith ep-eqt:InnerBarrel-aluminum , ep-eqt:InnerBarrel-gel .
+
+ep-eqt:InnerBarrel-gel
+      rdf:type ep-eqt:InnerBarrelType , owl:Class ;
+      rdfs:comment "inner barrel that is gel"^^xsd:string ;
+      rdfs:label "inner barrel - gel"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:InnerBarrel ;
+      owl:disjointWith ep-eqt:InnerBarrel-aluminum , ep-eqt:InnerBarrel-fiberglass .
+
+ep-eqt:InnerBarrelType
+      rdf:type rdfs:Class ;
+      rdfs:comment "class of inner barrel on the basis of whether it is aluminium, fibreglass or gel"^^xsd:string ;
+      rdfs:label "inner barrel type"^^xsd:string ;
+      rdfs:subClassOf owl:Class .
+
+ep-eqt:IntermediateCasing
+      rdf:type ep-eqt:CasingRoleType , owl:Class ;
+      rdfs:comment "casing that is intermediate"^^xsd:string ;
+      rdfs:label "intermediate casing"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:Casing ;
+      owl:disjointWith ep-eqt:ProductionCasing , ep-eqt:TopCasing .
+
+ep-eqt:KellyBushing
+      rdf:type owl:Class ;
+      rdfs:comment "equipment that is a Kelly bushing"^^xsd:string ;
+      rdfs:label "kelly bushing"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:Equipment .
+
+ep-eqt:LastCasingOfAWellBore
+      rdf:type owl:Class ;
+      rdfs:label "last casing of a wellbore"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:Casing , <http://www.reportinghub.no/ep/schema/well#SpatialPartOfAWellBore> .
+
+ep-eqt:Liner
+      rdf:type ep-eqt:CasingLinerTubingType , owl:Class ;
+      rdfs:comment "equipment that is a liner"^^xsd:string ;
+      rdfs:label "Liner"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:CasingLinerTubing ;
+      owl:disjointWith ep-eqt:Casing , ep-eqt:Tubing .
+
+ep-eqt:Manifold
+      rdf:type owl:Class ;
+      rdfs:label "manifold"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:Equipment .
+
+ep-eqt:Manifold-injection
+      rdf:type owl:Class ;
+      rdfs:label "manifold - injection"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:Manifold .
+
+ep-eqt:Manifold-production
+      rdf:type owl:Class ;
+      rdfs:label "manifold - production"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:Manifold .
+
+ep-eqt:PipeOutsideDiameterAPI_5CTClass
+      rdf:type rdfs:Class ;
+      rdfs:comment "Why is API_5CT included in the name? Does the specification standardise diameters?"^^xsd:string , "class of casing, liner or tubing on the basis of outside diameter"^^xsd:string ;
+      rdfs:label "pipe outside diameter API 5CT class"^^xsd:string ;
+      rdfs:subClassOf owl:Class .
+
+ep-eqt:PipeWeightAPI_5CTClass
+      rdf:type rdfs:Class ;
+      rdfs:comment "Why is API_5CT included in the name? Does the specification standardise weights?"^^xsd:string , "class of casing, liner or tubing on the basis of mass per unit length"^^xsd:string ;
+      rdfs:label "Pipe weight API 5CT class"^^xsd:string ;
+      rdfs:subClassOf owl:Class .
+
+ep-eqt:ProductionCasing
+      rdf:type ep-eqt:CasingRoleType , owl:Class ;
+      rdfs:comment "casing that is for production"^^xsd:string ;
+      rdfs:label "production casing"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:Casing ;
+      owl:disjointWith ep-eqt:IntermediateCasing , ep-eqt:TopCasing .
+
+ep-eqt:Separator
+      rdf:type owl:Class ;
+      rdfs:comment "equipment that is a separator"^^xsd:string ;
+      rdfs:label "separator"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:Equipment .
+
+ep-eqt:SteelGradeAPI_5CTClass
+      rdf:type rdfs:Class ;
+      rdfs:comment "class of material on the basis of the steel grade as defined in API Specification 5CT"^^xsd:string ;
+      rdfs:label "Steel grade API 5CT class"^^xsd:string ;
+      rdfs:subClassOf owl:Class .
+
+ep-eqt:Tank
+      rdf:type owl:Class ;
+      rdfs:comment "equipment that is a tank"^^xsd:string ;
+      rdfs:label "tank"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:Equipment .
+
+ep-eqt:TopCasing
+      rdf:type ep-eqt:CasingRoleType , owl:Class ;
+      rdfs:comment "casing that is at the top"^^xsd:string ;
+      rdfs:label "top casing"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:Casing ;
+      owl:disjointWith ep-eqt:IntermediateCasing , ep-eqt:ProductionCasing .
+
+ep-eqt:Tubing
+      rdf:type ep-eqt:CasingLinerTubingType , owl:Class ;
+      rdfs:comment "equipment that is tubing"^^xsd:string ;
+      rdfs:label "Tubing"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:CasingLinerTubing ;
+      owl:disjointWith ep-eqt:Casing , ep-eqt:Liner .
+
+ep-eqt:TubularConnectionClass
+      rdf:type rdfs:Class ;
+      rdfs:comment "class of tubular connection"^^xsd:string ;
+      rdfs:label "tubular connection class"^^xsd:string ;
+      rdfs:subClassOf owl:Class .
+
+ep-eqt:WellBoreLoggingTool
+      rdf:type owl:Class ;
+      rdfs:comment "equipment that is a wellbore logging tool"^^xsd:string ;
+      rdfs:label "well bore logging tool"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:Equipment .
+
+ep-eqt:WellTestChoke
+      rdf:type owl:Class ;
+      rdfs:comment "equipment that is a well test choke manifold"^^xsd:string ;
+      rdfs:label "well test choke"^^xsd:string ;
+      rdfs:subClassOf ep-eqt:Equipment .
+
+ep-eqt:chokeOrificeSize
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "diameterof the choke orifice within a well test choke manifold"^^xsd:string ;
+      rdfs:domain ep-eqt:WellTestChoke ;
+      rdfs:label "choke orifice size"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-eqt:codeAssignedByAManufacturer
+      rdf:type owl:DatatypeProperty ;
+      rdfs:comment "identifier that is a code assigned by a manufacturer to a class of supply defined by a manufacturer"^^xsd:string ;
+      rdfs:domain ep-eqt:ClassOfSupplyDefinedByAManufacturer ;
+      rdfs:label "code assigned by manufacturer"^^xsd:string .
+
+ep-eqt:diameterOfACasing
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:domain ep-eqt:Casing ;
+      rdfs:label "diameter of a casing"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-eqt:diameterOfDrillBit
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:domain ep-eqt:DrillBit ;
+      rdfs:label "diameter of drill bit"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-eqt:elevationOfKellyBushing
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the elevation of a Kelly bushing above mean sea level"^^xsd:string ;
+      rdfs:domain ep-eqt:KellyBushing ;
+      rdfs:label "elevation of kelly bushing"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-eqt:hasTubularConnectionClass
+      rdf:type owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:domain ep-eqt:CasingLinerTubing ;
+      rdfs:label "has tubular connection class"^^xsd:string ;
+      rdfs:range ep-eqt:TubularConnectionClass .
+
+ep-eqt:insideDiameterOfATubular
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the inside diameter of a tubular"^^xsd:string ;
+      rdfs:domain ep-eqt:CasingLinerTubing ;
+      rdfs:label "inside diameter of a tubular"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-eqt:lengthOfInnerBarrel
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the length of an inner barrel"^^xsd:string ;
+      rdfs:domain ep-eqt:InnerBarrel ;
+      rdfs:label "length of inner barrel"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-eqt:manufacturedBy
+      rdf:type owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "manufacturer of an equipment item"^^xsd:string ;
+      rdfs:domain ep-eqt:Equipment ;
+      rdfs:label "manaufactured by"^^xsd:string ;
+      rdfs:range <http://www.reportinghub.no/ep/schema/organization#Organization> .
+
+ep-eqt:maximumPressureForBlowOutPreventer
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the maximum pressure for a blow-out preventer"^^xsd:string ;
+      rdfs:domain ep-eqt:BlowOutPreventer ;
+      rdfs:label "maximum pressure for blow out preventer"^^xsd:string ;
+      rdfs:range ep-core:Pressure .
+
+ep-eqt:maximumPressureForChokeValve
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the maximum pressure for a choke valve"^^xsd:string ;
+      rdfs:domain ep-eqt:ChokeValve ;
+      rdfs:label "maximum pressure for choke valve"^^xsd:string ;
+      rdfs:range ep-core:Pressure .
+
+ep-eqt:outsideDiameterOfATubular
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:domain ep-eqt:CasingLinerTubing ;
+      rdfs:label "outside diameter of a tubular"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-eqt:stringLengthOfATubular
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the string length of a tubular"^^xsd:string ;
+      rdfs:domain ep-eqt:CasingLinerTubing ;
+      rdfs:label "string length of a tubular"^^xsd:string ;
+      rdfs:range ep-core:Length .

-# baseURI: http://www.reportinghub.no/ep/schema/1.0/material
-# imports: http://www.reportinghub.no/ep/schema/1.0/core
-
-@prefix ep-core:  <http://www.reportinghub.no/ep/schema/core#> .
-@prefix ep-material:  <http://www.reportinghub.no/ep/schema/material#> .
-@prefix owl:     <http://www.w3.org/2002/07/owl#> .
-@prefix rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
-@prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#> .
-@prefix transhelp:  <http://www.reportinghub.no/ep/transform/transform-helper-schema#> .
-@prefix xsd:     <http://www.w3.org/2001/XMLSchema#> .
-
-<http://www.reportinghub.no/ep/schema/1.0/material>
-      rdf:type owl:Ontology ;
-      owl:imports <http://www.reportinghub.no/ep/schema/1.0/core> ;
-      owl:versionInfo "Created with TopBraid Composer"^^xsd:string .
-
-ep-material:Air-gas
-      rdf:type owl:Class ;
-      rdfs:label "air gas"^^xsd:string ;
-      rdfs:subClassOf ep-material:NonHcGas .
-
-ep-material:AqueousMaterial
-      rdf:type owl:Class ;
-      rdfs:label "aqueous material"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:BasicSedimentAndWater
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "bsw"^^xsd:string , "basic sediment and water"^^xsd:string ;
-      rdfs:subClassOf ep-material:Fluid .
-
-ep-material:BatchOfCargo
-      rdf:type owl:Class ;
-      rdfs:label "batch of cargo"^^xsd:string ;
-      rdfs:subClassOf ep-material:QuantityOfMaterial .
-
-ep-material:Brine
-      rdf:type owl:Class ;
-      rdfs:label "brine"^^xsd:string ;
-      rdfs:subClassOf ep-material:Water .
-
-ep-material:C10AndHeavier
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C10+"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:C10AndLighter
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C10-"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:C2AndHeavier
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C2+"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:C2AndLighter
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C2-"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:C3AndHeavier
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C3+"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:C3AndLighter
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C3-"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:C4AndHeavier
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C4+"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:C4AndLighter
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C4-"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:C5AndHeavier
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C5+"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:C5AndLighter
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C5-"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:C6
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C6"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:C6AndHeavier
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C6+"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:C6AndLighter
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C6-"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:C7AndHeavier
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C7+"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:C7AndLighter
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C7-"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:C8AndHeavier
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C8+"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:C8AndLighter
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C8-"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:C9AndHeavier
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C9+"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:C9AndLighter
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C9-"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:CO2-gas
-      rdf:type owl:Class ;
-      rdfs:label "CO2 gas"^^xsd:string ;
-      rdfs:subClassOf ep-material:NonHcGas .
-
-ep-material:CarbonDioxide
-      rdf:type owl:Class ;
-      rdfs:label "carbon dioxide"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:CarbonMonoxide
-      rdf:type owl:Class ;
-      rdfs:label "carbon monoxide"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Chemical
-      rdf:type owl:Class ;
-      rdfs:label "chemical"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:ChemicalType
-      rdf:type rdfs:Class ;
-      rdfs:label "chemical type"^^xsd:string ;
-      rdfs:subClassOf owl:Class .
-
-ep-material:Chloride
-      rdf:type owl:Class ;
-      rdfs:label "chloride"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Condensate
-      rdf:type owl:Class ;
-      rdfs:label "condensate"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Crude-stabilized
-      rdf:type owl:Class ;
-      rdfs:label "crude - stabilized"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:CrudeOil
-      rdf:type owl:Class ;
-      rdfs:label "crude oil"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Cuttings
-      rdf:type owl:Class ;
-      rdfs:label "cuttings"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Diesel
-      rdf:type owl:Class ;
-      rdfs:label "diesel"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Diethyleneglycol
-      rdf:type owl:Class ;
-      rdfs:label "diethyleneglycol"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Dioxygen
-      rdf:type owl:Class ;
-      rdfs:label "dioxygen"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:DryFluid
-      rdf:type owl:Class ;
-      rdfs:label "dry fluid"^^xsd:string ;
-      rdfs:subClassOf ep-material:Fluid .
-
-ep-material:Ethane
-      rdf:type owl:Class ;
-      rdfs:label "ethane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Ethane-component
-      rdf:type owl:Class ;
-      rdfs:label "ethane - component"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Filtrate
-      rdf:type owl:Class ;
-      rdfs:label "filtrate"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Fluid
-      rdf:type owl:Class ;
-      rdfs:label "fluid"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:FluidFraction
-      rdf:type owl:Class ;
-      rdfs:label "fluid fraction"^^xsd:string ;
-      rdfs:subClassOf ep-material:Fluid .
-
-ep-material:FreshWater
-      rdf:type owl:Class ;
-      rdfs:label "fresh water"^^xsd:string ;
-      rdfs:subClassOf ep-material:Water .
-
-ep-material:Gas
-      rdf:type owl:Class ;
-      rdfs:label "gas"^^xsd:string ;
-      rdfs:subClassOf ep-material:Fluid .
-
-ep-material:Gas-componentInOil
-      rdf:type owl:Class ;
-      rdfs:label "gas - component in oil"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Gas-dry
-      rdf:type owl:Class ;
-      rdfs:label "gas - dry"^^xsd:string ;
-      rdfs:subClassOf ep-material:Gas .
-
-ep-material:Gas-rich
-      rdf:type owl:Class ;
-      rdfs:label "gas - rich"^^xsd:string ;
-      rdfs:subClassOf ep-material:Gas .
-
-ep-material:Gas-wet
-      rdf:type owl:Class ;
-      rdfs:label "gas - wet"^^xsd:string ;
-      rdfs:subClassOf ep-material:Gas .
-
-ep-material:GasAndWater
-      rdf:type owl:Class ;
-      rdfs:label "gas and water"^^xsd:string ;
-      rdfs:subClassOf ep-material:Fluid .
-
-ep-material:HeliumGas
-      rdf:type owl:Class ;
-      rdfs:label "helium gas"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Heptane
-      rdf:type owl:Class ;
-      rdfs:label "heptane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:HydrogenGas
-      rdf:type owl:Class ;
-      rdfs:label "hydrogen gas"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:HydrogenSulfide
-      rdf:type owl:Class ;
-      rdfs:label "hydrogen sulfide"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Isobutane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "IC4"^^xsd:string , "isobutane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Isobutane-component
-      rdf:type owl:Class ;
-      rdfs:label "i-butane - component"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Isopentane
-      rdf:type owl:Class , ep-material:SubstanceType ;
-      rdfs:label "isopentane"^^xsd:string , "IC5"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Liquid
-      rdf:type owl:Class ;
-      rdfs:label "liquid"^^xsd:string ;
-      rdfs:subClassOf ep-material:Fluid .
-
-ep-material:LiquifiedNaturalGas
-      rdf:type owl:Class ;
-      rdfs:label "liquified natural gas"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:LiquifiedPetroleumGas
-      rdf:type owl:Class ;
-      rdfs:label "liquified petroleum gas"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Material
-      rdf:type owl:Class ;
-      rdfs:label "material"^^xsd:string ;
-      rdfs:subClassOf ep-core:PhysicalObject .
-
-ep-material:MaterialPair
-      rdf:type owl:Class ;
-      rdfs:label "material pair"^^xsd:string ;
-      rdfs:subClassOf owl:Thing .
-
-ep-material:MaterialPartWholePair
-      rdf:type owl:Class ;
-      rdfs:label "material part - whole pair"^^xsd:string ;
-      rdfs:subClassOf ep-material:MaterialPair .
-
-ep-material:Methane
-      rdf:type owl:Class ;
-      rdfs:label "methane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Methanol
-      rdf:type owl:Class ;
-      rdfs:label "methanol"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:MixedButane
-      rdf:type owl:Class ;
-      rdfs:label "mixed butane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Monoethyleneglycol
-      rdf:type owl:Class ;
-      rdfs:label "monoethyleneglycol"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:NGL-componentInGas
-      rdf:type owl:Class ;
-      rdfs:label "NGL - component in gas"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Naptha
-      rdf:type owl:Class ;
-      rdfs:label "naptha"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:NaturalGas
-      rdf:type owl:Class ;
-      rdfs:label "natural gas"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:NaturalGasLiquid
-      rdf:type owl:Class ;
-      rdfs:label "natural gas liquid"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Neopentane
-      rdf:type owl:Class ;
-      rdfs:label "neopentane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:NitrogenGas
-      rdf:type owl:Class ;
-      rdfs:label "nitrogen gas"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:NitrogenOxideGas
-      rdf:type owl:Class ;
-      rdfs:label "nitrogen oxide gas"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:NonHcGas
-      rdf:type owl:Class ;
-      rdfs:label "non-HC gas"^^xsd:string ;
-      rdfs:subClassOf ep-material:Gas .
-
-ep-material:NormalButane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "NC4"^^xsd:string , "normal butane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:NormalButane-component
-      rdf:type owl:Class ;
-      rdfs:label "n-butane - component"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:NormalPentane
-      rdf:type owl:Class , ep-material:SubstanceType ;
-      rdfs:label "normal pentane"^^xsd:string , "NC5"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Oil
-      rdf:type owl:Class ;
-      rdfs:label "oil"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Oil-componentInWater
-      rdf:type owl:Class ;
-      rdfs:label "oil - component in water"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:OilAndGas
-      rdf:type owl:Class ;
-      rdfs:label "oil and gas"^^xsd:string ;
-      rdfs:subClassOf ep-material:Fluid .
-
-ep-material:OilAndWater
-      rdf:type owl:Class ;
-      rdfs:label "oil and water"^^xsd:string ;
-      rdfs:subClassOf ep-material:Fluid .
-
-ep-material:Oleic
-      rdf:type owl:Class ;
-      rdfs:label "oleic"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:OrganicCarbon
-      rdf:type owl:Class ;
-      rdfs:label "organic carbon"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:OtherInjectionFluid
-      rdf:type owl:Class ;
-      rdfs:label "other injection fluid"^^xsd:string ;
-      rdfs:subClassOf ep-material:Fluid .
-
-ep-material:Pentane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "pentane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:PetroleumGasLiquid
-      rdf:type owl:Class ;
-      rdfs:label "petroleum gas liquid"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:PlusFraction
-      rdf:type owl:Class ;
-      rdfs:label "plus fraction"^^xsd:string ;
-      rdfs:subClassOf ep-material:Fluid .
-
-ep-material:Propane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C3"^^xsd:string , "propane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Propane-component
-      rdf:type owl:Class ;
-      rdfs:label "propane - component"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:PureFluid
-      rdf:type owl:Class ;
-      rdfs:label "pure fluid"^^xsd:string ;
-      rdfs:subClassOf ep-material:Fluid .
-
-ep-material:QuantityOfMaterial
-      rdf:type owl:Class ;
-      rdfs:label "(temporal part of a) quantity of material"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:QuantityOfMaterialInAStandardState
-      rdf:type owl:Class ;
-      rdfs:label "quantity of material in a standard state"^^xsd:string ;
-      rdfs:subClassOf ep-material:QuantityOfMaterial .
-
-ep-material:Salt
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "salt"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Sand
-      rdf:type owl:Class ;
-      rdfs:label "sand"^^xsd:string ;
-      rdfs:subClassOf ep-material:Fluid .
-
-ep-material:SplitFraction
-      rdf:type owl:Class ;
-      rdfs:label "split fraction"^^xsd:string ;
-      rdfs:subClassOf ep-material:Fluid .
-
-ep-material:Steam
-      rdf:type owl:Class ;
-      rdfs:label "steam"^^xsd:string ;
-      rdfs:subClassOf ep-material:NonHcGas .
-
-ep-material:SubstanceType
-      rdf:type rdfs:Class ;
-      rdfs:label "substance type"^^xsd:string ;
-      rdfs:subClassOf owl:Class .
-
-ep-material:Triethyleneglycol
-      rdf:type owl:Class ;
-      rdfs:label "triethyleneglycol"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:UnknownFluid
-      rdf:type owl:Class ;
-      rdfs:label "unknown fluid"^^xsd:string ;
-      rdfs:subClassOf ep-material:Fluid .
-
-ep-material:Vapour
-      rdf:type owl:Class ;
-      rdfs:label "vapour"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Water
-      rdf:type owl:Class ;
-      rdfs:label "water"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Water-discharge
-      rdf:type owl:Class ;
-      rdfs:label "water - discharge"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:Water-processed
-      rdf:type owl:Class ;
-      rdfs:label "water - processed"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:firstMaterialOfPair
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty ;
-      rdfs:domain ep-material:MaterialPair ;
-      rdfs:label "first material of pair"^^xsd:string ;
-      rdfs:range ep-material:Material .
-
-ep-material:hasComponent
-      rdf:type owl:TransitiveProperty ;
-      rdfs:comment "A component is all part material of the class."^^xsd:string ;
-      rdfs:domain ep-material:Material ;
-      rdfs:label "hasComponent"^^xsd:string ;
-      rdfs:range ep-material:Material ;
-      rdfs:subPropertyOf ep-core:hasPart .
-
-ep-material:hasNonPrimaryComponent
-      rdf:type owl:ObjectProperty ;
-      rdfs:domain ep-material:Material ;
-      rdfs:label "has non-primary component"^^xsd:string ;
-      rdfs:range ep-material:Material ;
-      rdfs:subPropertyOf ep-material:hasComponent .
-
-ep-material:hasPrimaryComponent
-      rdf:type owl:FunctionalProperty , owl:ObjectProperty ;
-      rdfs:domain ep-material:Material ;
-      rdfs:label "has primary component"^^xsd:string ;
-      rdfs:range ep-material:Material ;
-      rdfs:subPropertyOf ep-material:hasComponent .
-
-ep-material:massRatio
-      rdf:type owl:FunctionalProperty , owl:ObjectProperty ;
-      rdfs:domain ep-material:MaterialPair ;
-      rdfs:label "mass ratio"^^xsd:string ;
-      rdfs:range ep-core:Ratio .
-
-ep-material:moleRatio
-      rdf:type owl:FunctionalProperty , owl:ObjectProperty ;
-      rdfs:domain ep-material:MaterialPair ;
-      rdfs:label "mole ratio"^^xsd:string ;
-      rdfs:range ep-core:Ratio .
-
-ep-material:partMaterialOfPair
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty ;
-      rdfs:domain ep-material:MaterialPartWholePair ;
-      rdfs:label "part material of pair"^^xsd:string ;
-      rdfs:range ep-material:Material ;
-      rdfs:subPropertyOf ep-material:firstMaterialOfPair .
-
-ep-material:ratioOfMassOfFirstMaterialToVolumeOfSecondMaterial
-      rdf:type owl:FunctionalProperty , owl:ObjectProperty ;
-      rdfs:domain ep-material:MaterialPair ;
-      rdfs:label "ratio of mass of first material to volume of second material"^^xsd:string ;
-      rdfs:range ep-core:Density .
-
-ep-material:reidVaporPressure
-      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
-      rdfs:domain ep-core:PhysicalThing ;
-      rdfs:label "Reid vapor pressure"^^xsd:string ;
-      rdfs:range ep-core:Pressure .
-
-ep-material:secondMaterialOfPair
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty ;
-      rdfs:domain ep-material:MaterialPair ;
-      rdfs:label "second material of pair"^^xsd:string ;
-      rdfs:range ep-material:Material .
-
-ep-material:substance-11dmcyPentane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "11dmcy pentane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-124tmBenzene
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "124tm benzene"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-12dmBenzene
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "12dm benzene"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-13dmBenzene
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "13dm benzene"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-14dmBenzene
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "14dm benzene"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-223tmButane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "223tm butane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-223tmPentane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "223tm pentane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-22dmButane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "22dm butane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-22dmHexane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "22dm hexane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-22dmPentane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "22dm pentane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-22dmPropane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "22dm propane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-23dmButane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "23dm butane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-23dmPentane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "23dm pentane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-24dmHexane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "24dm hexane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-24dmPentane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "24dm pentane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-25dmHexane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "25dm hexane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-2mButane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "2m butane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-2mHexane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "2m hexane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-2mPentane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "2m pentane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-2mPropane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "2m propane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-33dmPentane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "33dm pentane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-3etPentane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "3et pentane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-3mHexane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "3m hexane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-3mPentane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "3m pentane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-Ar
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "Ar"^^xsd:string , "Argon"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-Benzene
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "benzene"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-Butane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "butane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C11F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C11F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C12F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C12F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C13F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C13F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C13dmcyPentane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "c13dmcy pentane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C14F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C14F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C15F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C15F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C16F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C16F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C17F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C17F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C18F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C18F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C19F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C19F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C20F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C20F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C21F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C21F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C22F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C22F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C23F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C23F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C24F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C24F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C25F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C25F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C26F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C26F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C27F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C27F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C28F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C28F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C29F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C29F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C30F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C30F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C31F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C31F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C32F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C32F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C33F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C33F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C34F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C34F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C35F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C35F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C36F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C36F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C37F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C37F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C38F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C38F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C39F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C39F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C40F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C40F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C41F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C41F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C42F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C42F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C43F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C43F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C44F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C44F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C45F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C45F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C46F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C46F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C47F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C47F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C48F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C48F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-C49F
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C49F"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-CO2
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "CO2"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-Cyclohexane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "cyclohexane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-Cyclopentane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "cyclopentane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-Decanes
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "decanes"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-EtBenzene
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "et benzene"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-EtcyPentane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "etcy pentane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-Ethane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C2"^^xsd:string , "ethane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-H2
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "H2"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-H2O
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "H2O"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-H2S
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "H2S"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-Heptanes
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "heptanes"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-Hexane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "hexane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-Hexanes
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "hexanes"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-MBenzene
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "m benzene"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-McyHexane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "mcy hexane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-McyPentane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "mcy pentane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-Methane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "C1"^^xsd:string , "methane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-N2
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "N2"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-Nonanes
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "nonanes"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-O2
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "O2"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-Octanes
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "octanes"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-T12dmcyPentane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "t12dmcy pentane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:substance-T13dmcyPentane
-      rdf:type ep-material:SubstanceType , owl:Class ;
-      rdfs:label "t13dmcy pentane"^^xsd:string ;
-      rdfs:subClassOf ep-material:Material .
-
-ep-material:volumeRatio
-      rdf:type owl:FunctionalProperty , owl:ObjectProperty ;
-      rdfs:domain ep-material:MaterialPair ;
-      rdfs:label "volume ratio"^^xsd:string ;
-      rdfs:range ep-core:Ratio .
-
-ep-material:wholeMaterialOfPair
-      rdf:type owl:FunctionalProperty , owl:ObjectProperty ;
-      rdfs:domain ep-material:MaterialPartWholePair ;
-      rdfs:label "whole material of pair"^^xsd:string ;
-      rdfs:range ep-material:Material ;
-      rdfs:subPropertyOf ep-material:secondMaterialOfPair .
+# baseURI: http://www.reportinghub.no/ep/schema/1.0/material
+# imports: http://www.reportinghub.no/ep/schema/1.0/core
+
+@prefix ep-core:  <http://www.reportinghub.no/ep/schema/core#> .
+@prefix ep-material:  <http://www.reportinghub.no/ep/schema/material#> .
+@prefix owl:     <http://www.w3.org/2002/07/owl#> .
+@prefix rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+@prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix transhelp:  <http://www.reportinghub.no/ep/transform/transform-helper-schema#> .
+@prefix xsd:     <http://www.w3.org/2001/XMLSchema#> .
+
+<http://www.reportinghub.no/ep/schema/1.0/material>
+      rdf:type owl:Ontology ;
+      owl:imports <http://www.reportinghub.no/ep/schema/1.0/core> ;
+      owl:versionInfo "Created with TopBraid Composer"^^xsd:string .
+
+ep-material:Air-gas
+      rdf:type owl:Class ;
+      rdfs:label "air gas"^^xsd:string ;
+      rdfs:subClassOf ep-material:NonHcGas .
+
+ep-material:AqueousMaterial
+      rdf:type owl:Class ;
+      rdfs:label "aqueous material"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:BasicSedimentAndWater
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "basic sediment and water"^^xsd:string , "bsw"^^xsd:string ;
+      rdfs:subClassOf ep-material:Fluid ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS16681480"^^xsd:string .
+
+ep-material:BatchOfCargo
+      rdf:type owl:Class ;
+      rdfs:label "batch of cargo"^^xsd:string ;
+      rdfs:subClassOf ep-material:QuantityOfMaterial .
+
+ep-material:Brine
+      rdf:type owl:Class ;
+      rdfs:label "brine"^^xsd:string ;
+      rdfs:subClassOf ep-material:Water .
+
+ep-material:C10AndHeavier
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C10+"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:C10AndLighter
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C10-"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:C2AndHeavier
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C2+"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:C2AndLighter
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C2-"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:C3AndHeavier
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C3+"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:C3AndLighter
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C3-"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:C4AndHeavier
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C4+"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:C4AndLighter
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C4-"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:C5AndHeavier
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C5+"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:C5AndLighter
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C5-"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:C6
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C6"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:C6AndHeavier
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C6+"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:C6AndLighter
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C6-"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:C7AndHeavier
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C7+"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:C7AndLighter
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C7-"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:C8AndHeavier
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C8+"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:C8AndLighter
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C8-"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:C9AndHeavier
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C9+"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:C9AndLighter
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C9-"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:CO2-gas
+      rdf:type owl:Class ;
+      rdfs:label "CO2 gas"^^xsd:string ;
+      rdfs:subClassOf ep-material:NonHcGas ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS6737690"^^xsd:string .
+
+ep-material:CarbonDioxide
+      rdf:type owl:Class ;
+      rdfs:comment "material of a single type of molecule that is carbon dioxide"^^xsd:string ;
+      rdfs:label "carbon dioxide"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS424034"^^xsd:string .
+
+ep-material:CarbonMonoxide
+      rdf:type owl:Class ;
+      rdfs:label "carbon monoxide"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS424124"^^xsd:string .
+
+ep-material:Chemical
+      rdf:type owl:Class ;
+      rdfs:label "chemical"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS978526561"^^xsd:string .
+
+ep-material:ChemicalType
+      rdf:type rdfs:Class ;
+      rdfs:label "chemical type"^^xsd:string ;
+      rdfs:subClassOf owl:Class .
+
+ep-material:Chloride
+      rdf:type owl:Class ;
+      rdfs:comment "material of a single type of molecule that is chloride"^^xsd:string ;
+      rdfs:label "chloride"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:Condensate
+      rdf:type owl:Class ;
+      rdfs:label "condensate"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS8642343"^^xsd:string .
+
+ep-material:Crude-stabilized
+      rdf:type owl:Class ;
+      rdfs:label "crude - stabilized"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:CrudeOil
+      rdf:type owl:Class ;
+      rdfs:label "crude oil"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS8650260"^^xsd:string .
+
+ep-material:Cuttings
+      rdf:type owl:Class ;
+      rdfs:label "cuttings"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:Diesel
+      rdf:type owl:Class ;
+      rdfs:label "diesel"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS418648421"^^xsd:string .
+
+ep-material:Diethyleneglycol
+      rdf:type owl:Class ;
+      rdfs:label "diethyleneglycol"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:Dioxygen
+      rdf:type owl:Class ;
+      rdfs:label "dioxygen"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS426284"^^xsd:string .
+
+ep-material:DryFluid
+      rdf:type owl:Class ;
+      rdfs:label "dry fluid"^^xsd:string ;
+      rdfs:subClassOf ep-material:Fluid .
+
+ep-material:Ethane
+      rdf:type owl:Class ;
+      rdfs:comment "material of a single type of molecule that is ethane"^^xsd:string ;
+      rdfs:label "ethane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS419219"^^xsd:string .
+
+ep-material:Ethane-component
+      rdf:type owl:Class ;
+      rdfs:label "ethane - component"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:Filtrate
+      rdf:type owl:Class ;
+      rdfs:comment "material that is filtrate"^^xsd:string ;
+      rdfs:label "filtrate"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:Fluid
+      rdf:type owl:Class ;
+      rdfs:label "fluid"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:FluidFraction
+      rdf:type owl:Class ;
+      rdfs:label "fluid fraction"^^xsd:string ;
+      rdfs:subClassOf ep-material:Fluid .
+
+ep-material:FreshWater
+      rdf:type owl:Class ;
+      rdfs:label "fresh water"^^xsd:string ;
+      rdfs:subClassOf ep-material:Water .
+
+ep-material:Gas
+      rdf:type owl:Class ;
+      rdfs:label "gas"^^xsd:string ;
+      rdfs:subClassOf ep-material:Fluid .
+
+ep-material:Gas-componentInOil
+      rdf:type owl:Class ;
+      rdfs:label "gas - component in oil"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:Gas-dry
+      rdf:type owl:Class ;
+      rdfs:label "gas - dry"^^xsd:string ;
+      rdfs:subClassOf ep-material:Gas .
+
+ep-material:Gas-rich
+      rdf:type owl:Class ;
+      rdfs:label "gas - rich"^^xsd:string ;
+      rdfs:subClassOf ep-material:Gas .
+
+ep-material:Gas-wet
+      rdf:type owl:Class ;
+      rdfs:label "gas - wet"^^xsd:string ;
+      rdfs:subClassOf ep-material:Gas .
+
+ep-material:GasAndWater
+      rdf:type owl:Class ;
+      rdfs:label "gas and water"^^xsd:string ;
+      rdfs:subClassOf ep-material:Fluid .
+
+ep-material:HeliumGas
+      rdf:type owl:Class ;
+      rdfs:label "helium gas"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS8015624884"^^xsd:string .
+
+ep-material:Heptane
+      rdf:type owl:Class ;
+      rdfs:label "heptane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS419534"^^xsd:string .
+
+ep-material:HydrogenGas
+      rdf:type owl:Class ;
+      rdfs:label "hydrogen gas"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS425384"^^xsd:string .
+
+ep-material:HydrogenSulfide
+      rdf:type owl:Class ;
+      rdfs:label "hydrogen sulfide"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:Isobutane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "IC4"^^xsd:string , "isobutane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS419309"^^xsd:string .
+
+ep-material:Isobutane-component
+      rdf:type owl:Class ;
+      rdfs:label "i-butane - component"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:Isopentane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "IC5"^^xsd:string , "isopentane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS419399"^^xsd:string .
+
+ep-material:Liquid
+      rdf:type owl:Class ;
+      rdfs:label "liquid"^^xsd:string ;
+      rdfs:subClassOf ep-material:Fluid .
+
+ep-material:LiquifiedNaturalGas
+      rdf:type owl:Class ;
+      rdfs:label "liquified natural gas"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS418629161"^^xsd:string .
+
+ep-material:LiquifiedPetroleumGas
+      rdf:type owl:Class ;
+      rdfs:label "liquified petroleum gas"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:Material
+      rdf:type owl:Class ;
+      rdfs:label "material"^^xsd:string ;
+      rdfs:subClassOf ep-core:PhysicalObject .
+
+ep-material:MaterialPair
+      rdf:type owl:Class ;
+      rdfs:label "material pair"^^xsd:string ;
+      rdfs:subClassOf owl:Thing .
+
+ep-material:MaterialPartWholePair
+      rdf:type owl:Class ;
+      rdfs:label "material part - whole pair"^^xsd:string ;
+      rdfs:subClassOf ep-material:MaterialPair .
+
+ep-material:Methane
+      rdf:type owl:Class ;
+      rdfs:label "methane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:Methanol
+      rdf:type owl:Class ;
+      rdfs:label "methanol"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS572354"^^xsd:string .
+
+ep-material:MixedButane
+      rdf:type owl:Class ;
+      rdfs:label "mixed butane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:Monoethyleneglycol
+      rdf:type owl:Class ;
+      rdfs:label "monoethyleneglycol"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:NGL-componentInGas
+      rdf:type owl:Class ;
+      rdfs:label "NGL - component in gas"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:Naptha
+      rdf:type owl:Class ;
+      rdfs:label "naptha"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:NaturalGas
+      rdf:type owl:Class ;
+      rdfs:label "natural gas"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS6815505"^^xsd:string .
+
+ep-material:NaturalGasLiquid
+      rdf:type owl:Class ;
+      rdfs:label "natural gas liquid"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS16682414"^^xsd:string .
+
+ep-material:Neopentane
+      rdf:type owl:Class ;
+      rdfs:label "neopentane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS975108971"^^xsd:string .
+
+ep-material:NitrogenGas
+      rdf:type owl:Class ;
+      rdfs:label "nitrogen gas"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS482640407"^^xsd:string .
+
+ep-material:NitrogenOxideGas
+      rdf:type owl:Class ;
+      rdfs:label "nitrogen oxide gas"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:NonHcGas
+      rdf:type owl:Class ;
+      rdfs:label "non-HC gas"^^xsd:string ;
+      rdfs:subClassOf ep-material:Gas .
+
+ep-material:NormalButane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "NC4"^^xsd:string , "normal butane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:NormalButane-component
+      rdf:type owl:Class ;
+      rdfs:label "n-butane - component"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:NormalPentane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "NC5"^^xsd:string , "normal pentane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:Oil
+      rdf:type owl:Class ;
+      rdfs:label "oil"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS8641857"^^xsd:string .
+
+ep-material:Oil-componentInWater
+      rdf:type owl:Class ;
+      rdfs:label "oil - component in water"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:OilAndGas
+      rdf:type owl:Class ;
+      rdfs:label "oil and gas"^^xsd:string ;
+      rdfs:subClassOf ep-material:Fluid ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS801562496"^^xsd:string .
+
+ep-material:OilAndWater
+      rdf:type owl:Class ;
+      rdfs:label "oil and water"^^xsd:string ;
+      rdfs:subClassOf ep-material:Fluid .
+
+ep-material:Oleic
+      rdf:type owl:Class ;
+      rdfs:label "oleic"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS8015624913"^^xsd:string .
+
+ep-material:OrganicCarbon
+      rdf:type owl:Class ;
+      rdfs:label "organic carbon"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:OtherInjectionFluid
+      rdf:type owl:Class ;
+      rdfs:label "other injection fluid"^^xsd:string ;
+      rdfs:subClassOf ep-material:Fluid .
+
+ep-material:Pentane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "pentane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS419444"^^xsd:string .
+
+ep-material:PetroleumGasLiquid
+      rdf:type owl:Class ;
+      rdfs:label "petroleum gas liquid"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:PlusFraction
+      rdf:type owl:Class ;
+      rdfs:label "plus fraction"^^xsd:string ;
+      rdfs:subClassOf ep-material:Fluid .
+
+ep-material:Propane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C3"^^xsd:string , "propane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS419264"^^xsd:string .
+
+ep-material:Propane-component
+      rdf:type owl:Class ;
+      rdfs:label "propane - component"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:PureFluid
+      rdf:type owl:Class ;
+      rdfs:label "pure fluid"^^xsd:string ;
+      rdfs:subClassOf ep-material:Fluid .
+
+ep-material:QuantityOfMaterial
+      rdf:type owl:Class ;
+      rdfs:label "(temporal part of a) quantity of material"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:QuantityOfMaterialInAStandardState
+      rdf:type owl:Class ;
+      rdfs:label "quantity of material in a standard state"^^xsd:string ;
+      rdfs:subClassOf ep-material:QuantityOfMaterial .
+
+ep-material:Salt
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "salt"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS8015624941"^^xsd:string .
+
+ep-material:Sand
+      rdf:type owl:Class ;
+      rdfs:label "sand"^^xsd:string ;
+      rdfs:subClassOf ep-material:Fluid ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS885284"^^xsd:string .
+
+ep-material:SplitFraction
+      rdf:type owl:Class ;
+      rdfs:label "split fraction"^^xsd:string ;
+      rdfs:subClassOf ep-material:Fluid .
+
+ep-material:Steam
+      rdf:type owl:Class ;
+      rdfs:label "steam"^^xsd:string ;
+      rdfs:subClassOf ep-material:NonHcGas ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS14208634"^^xsd:string .
+
+ep-material:SubstanceType
+      rdf:type rdfs:Class ;
+      rdfs:label "substance type"^^xsd:string ;
+      rdfs:subClassOf owl:Class .
+
+ep-material:Triethyleneglycol
+      rdf:type owl:Class ;
+      rdfs:label "triethyleneglycol"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:UnknownFluid
+      rdf:type owl:Class ;
+      rdfs:label "unknown fluid"^^xsd:string ;
+      rdfs:subClassOf ep-material:Fluid .
+
+ep-material:Vapour
+      rdf:type owl:Class ;
+      rdfs:label "vapour"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:Water
+      rdf:type owl:Class ;
+      rdfs:label "water"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS1012769"^^xsd:string .
+
+ep-material:Water-discharge
+      rdf:type owl:Class ;
+      rdfs:label "water - discharge"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:Water-processed
+      rdf:type owl:Class ;
+      rdfs:label "water - processed"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:firstMaterialOfPair
+      rdf:type owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:domain ep-material:MaterialPair ;
+      rdfs:label "first material of pair"^^xsd:string ;
+      rdfs:range ep-material:Material .
+
+ep-material:hasComponent
+      rdf:type owl:TransitiveProperty ;
+      rdfs:comment "A component is all part material of the class."^^xsd:string ;
+      rdfs:domain ep-material:Material ;
+      rdfs:label "hasComponent"^^xsd:string ;
+      rdfs:range ep-material:Material ;
+      rdfs:subPropertyOf ep-core:hasPart .
+
+ep-material:hasNonPrimaryComponent
+      rdf:type owl:ObjectProperty ;
+      rdfs:domain ep-material:Material ;
+      rdfs:label "has non-primary component"^^xsd:string ;
+      rdfs:range ep-material:Material ;
+      rdfs:subPropertyOf ep-material:hasComponent .
+
+ep-material:hasPrimaryComponent
+      rdf:type owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:domain ep-material:Material ;
+      rdfs:label "has primary component"^^xsd:string ;
+      rdfs:range ep-material:Material ;
+      rdfs:subPropertyOf ep-material:hasComponent .
+
+ep-material:massRatio
+      rdf:type owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:domain ep-material:MaterialPair ;
+      rdfs:label "mass ratio"^^xsd:string ;
+      rdfs:range ep-core:Ratio .
+
+ep-material:moleRatio
+      rdf:type owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:domain ep-material:MaterialPair ;
+      rdfs:label "mole ratio"^^xsd:string ;
+      rdfs:range ep-core:Ratio .
+
+ep-material:partMaterialOfPair
+      rdf:type owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:domain ep-material:MaterialPartWholePair ;
+      rdfs:label "part material of pair"^^xsd:string ;
+      rdfs:range ep-material:Material ;
+      rdfs:subPropertyOf ep-material:firstMaterialOfPair .
+
+ep-material:ratioOfMassOfFirstMaterialToVolumeOfSecondMaterial
+      rdf:type owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:domain ep-material:MaterialPair ;
+      rdfs:label "ratio of mass of first material to volume of second material"^^xsd:string ;
+      rdfs:range ep-core:Density .
+
+ep-material:reidVaporPressure
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:domain ep-core:PhysicalThing ;
+      rdfs:label "Reid vapor pressure"^^xsd:string ;
+      rdfs:range ep-core:Pressure .
+
+ep-material:secondMaterialOfPair
+      rdf:type owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:domain ep-material:MaterialPair ;
+      rdfs:label "second material of pair"^^xsd:string ;
+      rdfs:range ep-material:Material .
+
+ep-material:substance-11dmcyPentane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "11dmcy pentane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-124tmBenzene
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "124tm benzene"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-12dmBenzene
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "12dm benzene"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-13dmBenzene
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "13dm benzene"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-14dmBenzene
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "14dm benzene"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-223tmButane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "223tm butane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-223tmPentane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "223tm pentane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-22dmButane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "22dm butane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-22dmHexane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "22dm hexane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-22dmPentane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "22dm pentane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-22dmPropane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "22dm propane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-23dmButane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "23dm butane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-23dmPentane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "23dm pentane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-24dmHexane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "24dm hexane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-24dmPentane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "24dm pentane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-25dmHexane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "25dm hexane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-2mButane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "2m butane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-2mHexane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "2m hexane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-2mPentane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "2m pentane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-2mPropane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "2m propane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-33dmPentane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "33dm pentane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-3etPentane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "3et pentane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-3mHexane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "3m hexane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-3mPentane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "3m pentane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-Ar
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "Ar"^^xsd:string , "Argon"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-Benzene
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "benzene"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS423899"^^xsd:string .
+
+ep-material:substance-Butane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "butane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS419354"^^xsd:string .
+
+ep-material:substance-C11F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C11F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C12F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C12F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C13F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C13F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C13dmcyPentane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "c13dmcy pentane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C14F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C14F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C15F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C15F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C16F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C16F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C17F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C17F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C18F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C18F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C19F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C19F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C20F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C20F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C21F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C21F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C22F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C22F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C23F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C23F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C24F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C24F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C25F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C25F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C26F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C26F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C27F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C27F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C28F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C28F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C29F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C29F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C30F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C30F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C31F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C31F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C32F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C32F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C33F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C33F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C34F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C34F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C35F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C35F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C36F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C36F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C37F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C37F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C38F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C38F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C39F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C39F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C40F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C40F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C41F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C41F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C42F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C42F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C43F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C43F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C44F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C44F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C45F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C45F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C46F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C46F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C47F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C47F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C48F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C48F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-C49F
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C49F"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-CO2
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "CO2"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-Cyclohexane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "cyclohexane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS424439"^^xsd:string .
+
+ep-material:substance-Cyclopentane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "cyclopentane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS424619"^^xsd:string .
+
+ep-material:substance-Decanes
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "decanes"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-EtBenzene
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "et benzene"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-EtcyPentane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "etcy pentane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-Ethane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C2"^^xsd:string , "ethane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS419219"^^xsd:string .
+
+ep-material:substance-H2
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "H2"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-H2O
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "H2O"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-H2S
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "H2S"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-Heptanes
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "heptanes"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-Hexane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "hexane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material ;
+      ep-core:seeReferenceData
+              "http://posccaesar.org/rdl/RDS419489"^^xsd:string .
+
+ep-material:substance-Hexanes
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "hexanes"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-MBenzene
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "m benzene"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-McyHexane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "mcy hexane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-McyPentane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "mcy pentane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-Methane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "C1"^^xsd:string , "methane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-N2
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "N2"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-Nonanes
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "nonanes"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-O2
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "O2"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-Octanes
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "octanes"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-T12dmcyPentane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "t12dmcy pentane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:substance-T13dmcyPentane
+      rdf:type ep-material:SubstanceType , owl:Class ;
+      rdfs:label "t13dmcy pentane"^^xsd:string ;
+      rdfs:subClassOf ep-material:Material .
+
+ep-material:volumeRatio
+      rdf:type owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:domain ep-material:MaterialPair ;
+      rdfs:label "volume ratio"^^xsd:string ;
+      rdfs:range ep-core:Ratio .
+
+ep-material:wholeMaterialOfPair
+      rdf:type owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:domain ep-material:MaterialPartWholePair ;
+      rdfs:label "whole material of pair"^^xsd:string ;
+      rdfs:range ep-material:Material ;
+      rdfs:subPropertyOf ep-material:secondMaterialOfPair .

-# baseURI: http://www.reportinghub.no/ep/schema/1.0/well
-# imports: http://www.reportinghub.no/ep/schema/1.0/core
-# imports: http://www.reportinghub.no/ep/schema/1.0/equipment
-# imports: http://www.reportinghub.no/ep/schema/1.0/facility
-# imports: http://www.reportinghub.no/ep/schema/1.0/material
-
-@prefix ep-core:  <http://www.reportinghub.no/ep/schema/core#> .
-@prefix ep-fac:  <http://www.reportinghub.no/ep/schema/facility#> .
-@prefix ep-well:  <http://www.reportinghub.no/ep/schema/well#> .
-@prefix owl:     <http://www.w3.org/2002/07/owl#> .
-@prefix rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
-@prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#> .
-@prefix xsd:     <http://www.w3.org/2001/XMLSchema#> .
-
-<http://www.reportinghub.no/ep/schema/1.0/well>
-      rdf:type owl:Ontology ;
-      owl:imports <http://www.reportinghub.no/ep/schema/1.0/material> , <http://www.reportinghub.no/ep/schema/1.0/facility> , <http://www.reportinghub.no/ep/schema/1.0/equipment> , <http://www.reportinghub.no/ep/schema/1.0/core> ;
-      owl:versionInfo "0.1.0"^^xsd:string .
-
-<http://www.reportinghub.no/ep/schema/material#Condensate>
-      rdf:type ep-well:FluidComponentType .
-
-<http://www.reportinghub.no/ep/schema/material#Filtrate>
-      rdf:type ep-well:FluidComponentType .
-
-<http://www.reportinghub.no/ep/schema/material#Gas>
-      rdf:type ep-well:FluidComponentType .
-
-<http://www.reportinghub.no/ep/schema/material#Oil>
-      rdf:type ep-well:FluidComponentType .
-
-<http://www.reportinghub.no/ep/schema/material#Water>
-      rdf:type ep-well:FluidComponentType .
-
-ep-well:CementingFluid
-      rdf:type owl:Class ;
-      rdfs:label "cementing fluid"^^xsd:string ;
-      rdfs:subClassOf <http://www.reportinghub.no/ep/schema/material#Fluid> .
-
-ep-well:CementingFluidType
-      rdf:type owl:Class ;
-      rdfs:label "cementing fluid type"^^xsd:string ;
-      rdfs:subClassOf ep-well:FluidType .
-
-ep-well:ClassOfWellBoreSectionBySize
-      rdf:type rdfs:Class ;
-      rdfs:label "class of wellbore section by size"^^xsd:string ;
-      rdfs:subClassOf owl:Class .
-
-ep-well:Cluster
-      rdf:type owl:Class ;
-      rdfs:label "cluster"^^xsd:string ;
-      rdfs:subClassOf ep-core:PhysicalObject .
-
-ep-well:FluidComponentType
-      rdf:type rdfs:Class ;
-      rdfs:comment "The set of classes that are enumerated for the dominant component in a fluid sample in the DDR schema."^^xsd:string ;
-      rdfs:label "fluid component type"^^xsd:string ;
-      rdfs:subClassOf owl:Class .
-
-ep-well:FluidType
-      rdf:type owl:Class ;
-      rdfs:label "fluid type"^^xsd:string ;
-      rdfs:subClassOf owl:Class .
-
-ep-well:HphtWellBore
-      rdf:type owl:Class , ep-well:WellBoreHphtType ;
-      rdfs:label "high pressure high temperature well bore"^^xsd:string ;
-      rdfs:subClassOf ep-well:TemporalPartOfAWellBore ;
-      owl:disjointWith ep-well:NotHphtWellBore .
-
-ep-well:LeakyWellBore
-      rdf:type owl:Class , ep-well:WellBoreTightnessType ;
-      rdfs:label "leaky well bore"^^xsd:string ;
-      rdfs:subClassOf ep-well:TemporalPartOfAWellBore ;
-      owl:disjointWith ep-well:TightWellBore .
-
-ep-well:LowerPartOfAWellBore
-      rdf:type owl:Class ;
-      rdfs:label "lower part of a well bore"^^xsd:string ;
-      rdfs:subClassOf ep-well:SpatialPartOfAWellBore .
-
-ep-well:Mud
-      rdf:type owl:Class , ep-well:CementingFluidType ;
-      rdfs:label "mud"^^xsd:string ;
-      rdfs:subClassOf ep-well:CementingFluid ;
-      owl:disjointWith ep-well:Wash , ep-well:Spacer , ep-well:Slurry .
-
-ep-well:Mud-oilBased
-      rdf:type owl:Class , ep-well:MudClass ;
-      rdfs:label "mud - oil based"^^xsd:string ;
-      rdfs:subClassOf ep-well:Mud ;
-      owl:disjointWith ep-well:Mud-waterBased , ep-well:Mud-other .
-
-ep-well:Mud-other
-      rdf:type owl:Class , ep-well:MudClass ;
-      rdfs:label "mud - other"^^xsd:string ;
-      rdfs:subClassOf ep-well:Mud ;
-      owl:disjointWith ep-well:Mud-waterBased , ep-well:Mud-oilBased .
-
-ep-well:Mud-waterBased
-      rdf:type owl:Class , ep-well:MudClass ;
-      rdfs:label "mud - water based"^^xsd:string ;
-      rdfs:subClassOf ep-well:Mud ;
-      owl:disjointWith ep-well:Mud-other , ep-well:Mud-oilBased .
-
-ep-well:MudClass
-      rdf:type owl:Class ;
-      rdfs:label "mud class"^^xsd:string ;
-      rdfs:subClassOf ep-well:FluidType .
-
-ep-well:NotHphtWellBore
-      rdf:type owl:Class , ep-well:WellBoreHphtType ;
-      rdfs:label "not high pressure high temperature well bore"^^xsd:string ;
-      rdfs:subClassOf ep-well:TemporalPartOfAWellBore ;
-      owl:disjointWith ep-well:HphtWellBore .
-
-ep-well:PositionWithinWellBore
-      rdf:type owl:Class ;
-      rdfs:label "position within wellbore"^^xsd:string ;
-      rdfs:subClassOf ep-well:SpatialPartOfAWellBore .
-
-ep-well:RecoveredCore
-      rdf:type owl:Class ;
-      rdfs:label "recovered core"^^xsd:string ;
-      rdfs:subClassOf ep-core:PhysicalObject .
-
-ep-well:Slurry
-      rdf:type owl:Class , ep-well:CementingFluidType ;
-      rdfs:label "slurry"^^xsd:string ;
-      rdfs:subClassOf ep-well:CementingFluid ;
-      owl:disjointWith ep-well:Wash , ep-well:Spacer , ep-well:Mud .
-
-ep-well:Spacer
-      rdf:type owl:Class , ep-well:CementingFluidType ;
-      rdfs:label "spacer"^^xsd:string ;
-      rdfs:subClassOf ep-well:CementingFluid ;
-      owl:disjointWith ep-well:Wash , ep-well:Slurry , ep-well:Mud .
-
-ep-well:SpatialPartOfAWell
-      rdf:type owl:Class ;
-      rdfs:label "spatial part of a well "^^xsd:string ;
-      rdfs:subClassOf ep-core:PhysicalObject .
-
-ep-well:SpatialPartOfAWellBore
-      rdf:type owl:Class ;
-      rdfs:label "spatial part of a well bore"^^xsd:string ;
-      rdfs:subClassOf ep-core:PhysicalObject .
-
-ep-well:SurroundingRockFormation
-      rdf:type owl:Class ;
-      rdfs:label "surrounding rock formation"^^xsd:string ;
-      rdfs:subClassOf ep-well:SpatialPartOfAWellBore .
-
-ep-well:TemporalPartOfAWell
-      rdf:type owl:Class ;
-      rdfs:label "(temporal part of a) well"^^xsd:string ;
-      rdfs:subClassOf ep-core:PhysicalObject .
-
-ep-well:TemporalPartOfAWellBore
-      rdf:type owl:Class ;
-      rdfs:label "(temporal part of a) wellbore"^^xsd:string ;
-      rdfs:subClassOf ep-core:PhysicalObject .
-
-ep-well:TightWellBore
-      rdf:type owl:Class , ep-well:WellBoreTightnessType ;
-      rdfs:label "tight well bore"^^xsd:string ;
-      rdfs:subClassOf ep-well:TemporalPartOfAWellBore ;
-      owl:disjointWith ep-well:LeakyWellBore .
-
-ep-well:UserDescribedCementingFluidType
-      rdf:type owl:Class ;
-      rdfs:label "user described cementing fluid type"^^xsd:string ;
-      rdfs:subClassOf ep-well:FluidType .
-
-ep-well:Wash
-      rdf:type owl:Class , ep-well:CementingFluidType ;
-      rdfs:label "wash"^^xsd:string ;
-      rdfs:subClassOf ep-well:CementingFluid ;
-      owl:disjointWith ep-well:Spacer , ep-well:Slurry , ep-well:Mud .
-
-ep-well:Well
-      rdf:type owl:Class ;
-      rdfs:label "well (whole life)"^^xsd:string ;
-      rdfs:subClassOf ep-well:TemporalPartOfAWell .
-
-ep-well:WellBore
-      rdf:type owl:Class ;
-      rdfs:label "wellbore (whole life)"^^xsd:string ;
-      rdfs:subClassOf ep-well:TemporalPartOfAWellBore ;
-      rdfs:subClassOf
-              [ rdf:type owl:Restriction ;
-                owl:cardinality "1"^^xsd:nonNegativeInteger ;
-                owl:onProperty ep-core:name
-              ] .
-
-ep-well:WellBoreBottom
-      rdf:type owl:Class ;
-      rdfs:label "wellbore bottom"^^xsd:string ;
-      rdfs:subClassOf ep-well:SpatialPartOfAWellBore .
-
-ep-well:WellBoreHphtType
-      rdf:type rdfs:Class ;
-      rdfs:label "well bore high pressure high temperature type"^^xsd:string ;
-      rdfs:subClassOf owl:Class .
-
-ep-well:WellBoreKickOff
-      rdf:type owl:Class ;
-      rdfs:label "wellbore kickoff"^^xsd:string ;
-      rdfs:subClassOf ep-well:SpatialPartOfAWellBore .
-
-ep-well:WellBorePilotHole
-      rdf:type owl:Class ;
-      rdfs:label "wellbore pilot hole"^^xsd:string ;
-      rdfs:subClassOf ep-well:SpatialPartOfAWellBore .
-
-ep-well:WellBoreSection
-      rdf:type owl:Class ;
-      rdfs:label "wellbore section"^^xsd:string ;
-      rdfs:subClassOf ep-well:SpatialPartOfAWellBore .
-
-ep-well:WellBoreTightnessType
-      rdf:type rdfs:Class ;
-      rdfs:label "well bore tightness type"^^xsd:string ;
-      rdfs:subClassOf owl:Class .
-
-ep-well:WellBoreWithCirculation
-      rdf:type owl:Class ;
-      rdfs:label "well bore with circulation"^^xsd:string ;
-      rdfs:subClassOf ep-well:TemporalPartOfAWellBore ;
-      owl:disjointWith ep-well:WellBoreWithoutCirculation .
-
-ep-well:WellBoreWithoutCirculation
-      rdf:type owl:Class ;
-      rdfs:label "well bore without circulation"^^xsd:string ;
-      rdfs:subClassOf ep-well:TemporalPartOfAWellBore ;
-      owl:disjointWith ep-well:WellBoreWithCirculation .
-
-ep-well:WellGroup
-      rdf:type owl:Class ;
-      rdfs:label "well group"^^xsd:string ;
-      rdfs:subClassOf ep-core:PhysicalObject .
-
-ep-well:WellHead
-      rdf:type owl:Class ;
-      rdfs:label "well head"^^xsd:string ;
-      rdfs:subClassOf ep-well:SpatialPartOfAWell .
-
-ep-well:averageBottomHolePressure
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:TemporalPartOfAWellBore ;
-      rdfs:label "average bottom hole pressure"^^xsd:string ;
-      rdfs:range ep-core:Pressure .
-
-ep-well:averageBottomHoleTemperature
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:TemporalPartOfAWellBore ;
-      rdfs:label "average bottom hole temperature"^^xsd:string ;
-      rdfs:range ep-core:Temperature .
-
-ep-well:azimuth
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:PositionWithinWellBore ;
-      rdfs:label "azimuth"^^xsd:string ;
-      rdfs:range ep-core:PlaneAngle .
-
-ep-well:bottomHoleMeasuredDepth
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:TemporalPartOfAWellBore ;
-      rdfs:label "bottom hole measured depth"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-well:bottomHoleTemperature
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:TemporalPartOfAWellBore ;
-      rdfs:label "bottom hole temperature"^^xsd:string ;
-      rdfs:range ep-core:Temperature .
-
-ep-well:bottomHoleTrueVerticalDepth
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:TemporalPartOfAWellBore ;
-      rdfs:label "bottom hole true vertical depth"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-well:cementingFluidPerCentFreeWater
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:CementingFluid ;
-      rdfs:label "cementing fluid per cent free water"^^xsd:string ;
-      rdfs:range ep-core:VolumePerUnitVolumeConcentration .
-
-ep-well:cementingFluidThickeningTime
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:CementingFluid ;
-      rdfs:label "cementing fluid thickening time"^^xsd:string ;
-      rdfs:range ep-core:TimeDuration .
-
-ep-well:coreLength
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:RecoveredCore ;
-      rdfs:label "core length"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-well:diameterOfAWellBorePilotHole
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:WellBorePilotHole ;
-      rdfs:label "diameter of a wellbore pilot hole"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-well:dominantComponent
-      rdf:type owl:ObjectProperty ;
-      rdfs:domain <http://www.reportinghub.no/ep/schema/material#Fluid> ;
-      rdfs:label "dominant component"^^xsd:string ;
-      rdfs:range ep-well:FluidComponentType .
-
-ep-well:finalBottomHoleMeasuredDepth
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:TemporalPartOfAWellBore ;
-      rdfs:label "final bottom hole measured depth"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-well:finalBottomHoleTrueVerticalDepth
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:TemporalPartOfAWellBore ;
-      rdfs:label "final bottom hole true vertical depth"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-well:gasConcentrationHigh
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain <http://www.reportinghub.no/ep/schema/material#Fluid> ;
-      rdfs:label "gas concentration - high"^^xsd:string ;
-      rdfs:range ep-core:VolumePerUnitVolumeConcentration .
-
-ep-well:gasConcentrationLow
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain <http://www.reportinghub.no/ep/schema/material#Fluid> ;
-      rdfs:label "gas concentration - low"^^xsd:string ;
-      rdfs:range ep-core:VolumePerUnitVolumeConcentration .
-
-ep-well:hasBarrel
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty ;
-      rdfs:domain ep-well:RecoveredCore ;
-      rdfs:label "has barrel"^^xsd:string ;
-      rdfs:range <http://www.reportinghub.no/ep/schema/equipment#InnerBarrel> .
-
-ep-well:inclination
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:PositionWithinWellBore ;
-      rdfs:label "inclination"^^xsd:string ;
-      rdfs:range ep-core:PlaneAngle .
-
-ep-well:initialBottomHoleMeasuredDepth
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:TemporalPartOfAWellBore ;
-      rdfs:label "initial bottom hole measured depth"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-well:lithologyDescription
-      rdf:type owl:DatatypeProperty ;
-      rdfs:domain ep-well:SpatialPartOfAWellBore ;
-      rdfs:label "lithology description"^^xsd:string .
-
-ep-well:measuredDepth
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:SpatialPartOfAWellBore ;
-      rdfs:label "measured depth"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-well:measuredDepthOfPlugTop
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:TemporalPartOfAWellBore ;
-      rdfs:label "measured depth of plug top"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-well:measuredDepthToTheBottomOfAPartOfAWellBore
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:SpatialPartOfAWellBore ;
-      rdfs:label "measured depth to the bottom of a part of a wellbore"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-well:measuredDepthToTheTopOfAPartOfAWellBore
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:SpatialPartOfAWellBore ;
-      rdfs:label "measured depth to the top of a part of a wellbore"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-well:nominalInsideDiameterOfBoreHole
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:TemporalPartOfAWellBore ;
-      rdfs:label "nominal inside diameter of borehole"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-well:plannedBottomHoleMeasuredDepth
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:TemporalPartOfAWellBore ;
-      rdfs:label "planned bottom hole measured depth"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-well:plannedPilotBottomHoleMeasuredDepth
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:WellBorePilotHole ;
-      rdfs:label "planned pilot bottom hole measured depth"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-well:plannedPilotBottomHoleTrueVerticalDepth
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:WellBorePilotHole ;
-      rdfs:label "planned pilot bottom hole true vertical depth"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-well:porePressure
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:SpatialPartOfAWellBore ;
-      rdfs:label "pore pressure"^^xsd:string ;
-      rdfs:range ep-core:Pressure .
-
-ep-well:porePressureEquivalentMudDensity
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:TemporalPartOfAWellBore ;
-      rdfs:label "pore pressure - equivalent mud density"^^xsd:string ;
-      rdfs:range ep-core:Density .
-
-ep-well:ratioOfCementMixToWater
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:CementingFluid ;
-      rdfs:label "ratio of cement mix to water"^^xsd:string ;
-      rdfs:range ep-core:VolumePerUnitVolumeConcentration .
-
-ep-well:relativeAmountOfCoreRecovered
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:RecoveredCore ;
-      rdfs:label "relative amount of core recovered"^^xsd:string ;
-      rdfs:range ep-core:VolumePerUnitVolumeConcentration .
-
-ep-well:showDescription
-      rdf:type owl:DatatypeProperty ;
-      rdfs:domain ep-well:SpatialPartOfAWellBore ;
-      rdfs:label "show description"^^xsd:string .
-
-ep-well:shutInCasingPressure
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:TemporalPartOfAWellBore ;
-      rdfs:label "shut in casing pressure"^^xsd:string ;
-      rdfs:range ep-core:Pressure .
-
-ep-well:shutInDrillPipePressure
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:TemporalPartOfAWellBore ;
-      rdfs:label "shut in drill pipe pressure"^^xsd:string ;
-      rdfs:range ep-core:Pressure .
-
-ep-well:stratigraphyDescription
-      rdf:type owl:DatatypeProperty ;
-      rdfs:domain ep-well:SpatialPartOfAWellBore ;
-      rdfs:label "stratigraphy description"^^xsd:string .
-
-ep-well:strengthOfRockFormation
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:SurroundingRockFormation ;
-      rdfs:label "strength of rock formation"^^xsd:string ;
-      rdfs:range ep-core:StrengthOfRockFormation .
-
-ep-well:trueVerticalDepth
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:SpatialPartOfAWellBore ;
-      rdfs:label "true vertical depth"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-well:trueVerticalDepthToTheBottomOfAPartOfAWellBore
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:SpatialPartOfAWellBore ;
-      rdfs:label "true vertical depth to the bottom of a part of a wellbore"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-well:trueVerticalDepthToTheTopOfAPartOfAWellBore
-      rdf:type owl:ObjectProperty , owl:FunctionalProperty , ep-core:Class_of_indirect_property ;
-      rdfs:domain ep-well:SpatialPartOfAWellBore ;
-      rdfs:label "true vertical depth to the top of a part of a wellbore"^^xsd:string ;
-      rdfs:range ep-core:Length .
-
-ep-well:wellBoreCompletedAt
-      rdf:type owl:FunctionalProperty , owl:DatatypeProperty ;
-      rdfs:domain ep-well:TemporalPartOfAWellBore ;
-      rdfs:label "wellbore completed at"^^xsd:string .
-
-ep-well:wellBorePreSpudAt
-      rdf:type owl:FunctionalProperty , owl:DatatypeProperty ;
-      rdfs:domain ep-well:TemporalPartOfAWellBore ;
-      rdfs:label "wellbore pre-spud at"^^xsd:string .
-
-ep-well:wellBoreSpudAt
-      rdf:type owl:FunctionalProperty , owl:DatatypeProperty ;
-      rdfs:domain ep-well:TemporalPartOfAWellBore ;
-      rdfs:label "wellbore spud at"^^xsd:string .
+# baseURI: http://www.reportinghub.no/ep/schema/1.0/well
+# imports: http://www.reportinghub.no/ep/schema/1.0/core
+# imports: http://www.reportinghub.no/ep/schema/1.0/equipment
+# imports: http://www.reportinghub.no/ep/schema/1.0/facility
+# imports: http://www.reportinghub.no/ep/schema/1.0/material
+
+@prefix ep-core:  <http://www.reportinghub.no/ep/schema/core#> .
+@prefix ep-fac:  <http://www.reportinghub.no/ep/schema/facility#> .
+@prefix ep-well:  <http://www.reportinghub.no/ep/schema/well#> .
+@prefix owl:     <http://www.w3.org/2002/07/owl#> .
+@prefix rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+@prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix xsd:     <http://www.w3.org/2001/XMLSchema#> .
+
+<http://www.reportinghub.no/ep/schema/1.0/well>
+      rdf:type owl:Ontology ;
+      owl:imports <http://www.reportinghub.no/ep/schema/1.0/core> , <http://www.reportinghub.no/ep/schema/1.0/equipment> , <http://www.reportinghub.no/ep/schema/1.0/facility> , <http://www.reportinghub.no/ep/schema/1.0/material> ;
+      owl:versionInfo "0.1.0"^^xsd:string .
+
+<http://www.reportinghub.no/ep/schema/material#Condensate>
+      rdf:type ep-well:FluidComponentType .
+
+<http://www.reportinghub.no/ep/schema/material#Filtrate>
+      rdf:type ep-well:FluidComponentType .
+
+<http://www.reportinghub.no/ep/schema/material#Gas>
+      rdf:type ep-well:FluidComponentType .
+
+<http://www.reportinghub.no/ep/schema/material#Oil>
+      rdf:type ep-well:FluidComponentType .
+
+<http://www.reportinghub.no/ep/schema/material#Water>
+      rdf:type ep-well:FluidComponentType .
+
+ep-well:CementingFluid
+      rdf:type owl:Class ;
+      rdfs:comment "fluid that is intended to be used for cementing a well"^^xsd:string ;
+      rdfs:label "cementing fluid"^^xsd:string ;
+      rdfs:subClassOf <http://www.reportinghub.no/ep/schema/material#Fluid> .
+
+ep-well:CementingFluidType
+      rdf:type owl:Class ;
+      rdfs:comment "class of cementing fluid on the basis of whether it is mud, slurry, spacer or wash"^^xsd:string ;
+      rdfs:label "cementing fluid type"^^xsd:string ;
+      rdfs:subClassOf ep-well:FluidType .
+
+ep-well:ClassOfWellBoreSectionBySize
+      rdf:type rdfs:Class ;
+      rdfs:comment "class of wellbore section on the basis of its size"^^xsd:string ;
+      rdfs:label "class of wellbore section by size"^^xsd:string ;
+      rdfs:subClassOf owl:Class .
+
+ep-well:Cluster
+      rdf:type owl:Class ;
+      rdfs:label "cluster"^^xsd:string ;
+      rdfs:subClassOf ep-core:PhysicalObject .
+
+ep-well:FluidComponentType
+      rdf:type rdfs:Class ;
+      rdfs:comment "The set of classes that are enumerated for the dominant component in a fluid sample in the DDR schema."^^xsd:string ;
+      rdfs:label "fluid component type"^^xsd:string ;
+      rdfs:subClassOf owl:Class .
+
+ep-well:FluidType
+      rdf:type owl:Class ;
+      rdfs:comment "class of fluid"^^xsd:string ;
+      rdfs:label "fluid type"^^xsd:string ;
+      rdfs:subClassOf owl:Class .
+
+ep-well:HphtWellBore
+      rdf:type ep-well:WellBoreHphtType , owl:Class ;
+      rdfs:comment "wellbore that is high pressure and high temperature"^^xsd:string ;
+      rdfs:label "high pressure high temperature well bore"^^xsd:string ;
+      rdfs:subClassOf ep-well:TemporalPartOfAWellBore ;
+      owl:disjointWith ep-well:NotHphtWellBore .
+
+ep-well:LeakyWellBore
+      rdf:type ep-well:WellBoreTightnessType , owl:Class ;
+      rdfs:comment "wellbore that is leaky"^^xsd:string ;
+      rdfs:label "leaky well bore"^^xsd:string ;
+      rdfs:subClassOf ep-well:TemporalPartOfAWellBore ;
+      owl:disjointWith ep-well:TightWellBore .
+
+ep-well:LowerPartOfAWellBore
+      rdf:type owl:Class ;
+      rdfs:comment "spatial part of a wellbore that is all of it below a point"^^xsd:string ;
+      rdfs:label "lower part of a well bore"^^xsd:string ;
+      rdfs:subClassOf ep-well:SpatialPartOfAWellBore .
+
+ep-well:Mud
+      rdf:type ep-well:CementingFluidType , owl:Class ;
+      rdfs:comment "cementing fluid that is mud"^^xsd:string ;
+      rdfs:label "mud"^^xsd:string ;
+      rdfs:subClassOf ep-well:CementingFluid ;
+      owl:disjointWith ep-well:Slurry , ep-well:Spacer , ep-well:Wash .
+
+ep-well:Mud-oilBased
+      rdf:type ep-well:MudClass , owl:Class ;
+      rdfs:comment "mud that is oil based"^^xsd:string ;
+      rdfs:label "mud - oil based"^^xsd:string ;
+      rdfs:subClassOf ep-well:Mud ;
+      owl:disjointWith ep-well:Mud-other , ep-well:Mud-waterBased .
+
+ep-well:Mud-other
+      rdf:type ep-well:MudClass , owl:Class ;
+      rdfs:comment "mud that is neither oil nor water based"^^xsd:string ;
+      rdfs:label "mud - other"^^xsd:string ;
+      rdfs:subClassOf ep-well:Mud ;
+      owl:disjointWith ep-well:Mud-oilBased , ep-well:Mud-waterBased .
+
+ep-well:Mud-waterBased
+      rdf:type ep-well:MudClass , owl:Class ;
+      rdfs:comment "mud that is water based"^^xsd:string ;
+      rdfs:label "mud - water based"^^xsd:string ;
+      rdfs:subClassOf ep-well:Mud ;
+      owl:disjointWith ep-well:Mud-oilBased , ep-well:Mud-other .
+
+ep-well:MudClass
+      rdf:type owl:Class ;
+      rdfs:comment "class of mud on the basis of whether it is oil based, water based, or neither"^^xsd:string ;
+      rdfs:label "mud class"^^xsd:string ;
+      rdfs:subClassOf ep-well:FluidType .
+
+ep-well:NotHphtWellBore
+      rdf:type ep-well:WellBoreHphtType , owl:Class ;
+      rdfs:comment "wellbore that is not high pressure and high temperature"^^xsd:string ;
+      rdfs:label "not high pressure high temperature well bore"^^xsd:string ;
+      rdfs:subClassOf ep-well:TemporalPartOfAWellBore ;
+      owl:disjointWith ep-well:HphtWellBore .
+
+ep-well:PositionWithinWellBore
+      rdf:type owl:Class ;
+      rdfs:comment "spatial part of a wellbore that is a position down the hole"^^xsd:string ;
+      rdfs:label "position within wellbore"^^xsd:string ;
+      rdfs:subClassOf ep-well:SpatialPartOfAWellBore .
+
+ep-well:RecoveredCore
+      rdf:type owl:Class ;
+      rdfs:label "recovered core"^^xsd:string ;
+      rdfs:subClassOf ep-core:PhysicalObject .
+
+ep-well:Slurry
+      rdf:type ep-well:CementingFluidType , owl:Class ;
+      rdfs:comment "cementing fluid that is slurry"^^xsd:string ;
+      rdfs:label "slurry"^^xsd:string ;
+      rdfs:subClassOf ep-well:CementingFluid ;
+      owl:disjointWith ep-well:Mud , ep-well:Spacer , ep-well:Wash .
+
+ep-well:Spacer
+      rdf:type ep-well:CementingFluidType , owl:Class ;
+      rdfs:comment "cementing fluid that is spacer"^^xsd:string ;
+      rdfs:label "spacer"^^xsd:string ;
+      rdfs:subClassOf ep-well:CementingFluid ;
+      owl:disjointWith ep-well:Mud , ep-well:Slurry , ep-well:Wash .
+
+ep-well:SpatialPartOfAWell
+      rdf:type owl:Class ;
+      rdfs:comment "physical object that is a spatial part of a well"^^xsd:string ;
+      rdfs:label "spatial part of a well "^^xsd:string ;
+      rdfs:subClassOf ep-core:PhysicalObject .
+
+ep-well:SpatialPartOfAWellBore
+      rdf:type owl:Class ;
+      rdfs:comment "physical object that is a spatial part of a wellbore"^^xsd:string ;
+      rdfs:label "spatial part of a well bore"^^xsd:string ;
+      rdfs:subClassOf ep-core:PhysicalObject .
+
+ep-well:SurroundingRockFormation
+      rdf:type owl:Class ;
+      rdfs:comment "spatial part of a wellbore that is the surrounding rock formation"^^xsd:string ;
+      rdfs:label "surrounding rock formation"^^xsd:string ;
+      rdfs:subClassOf ep-well:SpatialPartOfAWellBore .
+
+ep-well:TemporalPartOfAWell
+      rdf:type owl:Class ;
+      rdfs:comment "physical object that is a well"^^xsd:string ;
+      rdfs:label "(temporal part of a) well"^^xsd:string ;
+      rdfs:subClassOf ep-core:PhysicalObject .
+
+ep-well:TemporalPartOfAWellBore
+      rdf:type owl:Class ;
+      rdfs:comment "physical object that is a wellbore"^^xsd:string ;
+      rdfs:label "(temporal part of a) wellbore"^^xsd:string ;
+      rdfs:subClassOf ep-core:PhysicalObject .
+
+ep-well:TightWellBore
+      rdf:type ep-well:WellBoreTightnessType , owl:Class ;
+      rdfs:comment "wellbore that is not leaky"^^xsd:string ;
+      rdfs:label "tight well bore"^^xsd:string ;
+      rdfs:subClassOf ep-well:TemporalPartOfAWellBore ;
+      owl:disjointWith ep-well:LeakyWellBore .
+
+ep-well:UserDescribedCementingFluidType
+      rdf:type owl:Class ;
+      rdfs:comment "class of cementing fluid that is not defined within the EPIM schema"^^xsd:string ;
+      rdfs:label "user described cementing fluid type"^^xsd:string ;
+      rdfs:subClassOf ep-well:FluidType .
+
+ep-well:Wash
+      rdf:type ep-well:CementingFluidType , owl:Class ;
+      rdfs:comment "cementing fluid that is wash"^^xsd:string ;
+      rdfs:label "wash"^^xsd:string ;
+      rdfs:subClassOf ep-well:CementingFluid ;
+      owl:disjointWith ep-well:Mud , ep-well:Slurry , ep-well:Spacer .
+
+ep-well:Well
+      rdf:type owl:Class ;
+      rdfs:comment "well for all of its life"^^xsd:string ;
+      rdfs:label "well (whole life)"^^xsd:string ;
+      rdfs:subClassOf ep-well:TemporalPartOfAWell .
+
+ep-well:WellBore
+      rdf:type owl:Class ;
+      rdfs:comment "wellbore for all of its life"^^xsd:string ;
+      rdfs:label "wellbore (whole life)"^^xsd:string ;
+      rdfs:subClassOf ep-well:TemporalPartOfAWellBore ;
+      rdfs:subClassOf
+              [ rdf:type owl:Restriction ;
+                owl:cardinality "1"^^xsd:nonNegativeInteger ;
+                owl:onProperty ep-core:name
+              ] .
+
+ep-well:WellBoreBottom
+      rdf:type owl:Class ;
+      rdfs:comment "spatial part of a wellbore that is the bottom of the hole"^^xsd:string ;
+      rdfs:label "wellbore bottom"^^xsd:string ;
+      rdfs:subClassOf ep-well:SpatialPartOfAWellBore .
+
+ep-well:WellBoreHphtType
+      rdf:type rdfs:Class ;
+      rdfs:comment "class of wellbore on the basis of whether or not it is high pressure and high temperature"^^xsd:string ;
+      rdfs:label "well bore high pressure high temperature type"^^xsd:string ;
+      rdfs:subClassOf owl:Class .
+
+ep-well:WellBoreKickOff
+      rdf:type owl:Class ;
+      rdfs:comment "spatial part of a wellbore that is its kick-off"^^xsd:string ;
+      rdfs:label "wellbore kickoff"^^xsd:string ;
+      rdfs:subClassOf ep-well:SpatialPartOfAWellBore .
+
+ep-well:WellBorePilotHole
+      rdf:type owl:Class ;
+      rdfs:comment "spatial part of a wellbore that is its pilot hole"^^xsd:string ;
+      rdfs:label "wellbore pilot hole"^^xsd:string ;
+      rdfs:subClassOf ep-well:SpatialPartOfAWellBore .
+
+ep-well:WellBoreSection
+      rdf:type owl:Class ;
+      rdfs:comment "spatial part of a wellbore that is a section across it"^^xsd:string ;
+      rdfs:label "wellbore section"^^xsd:string ;
+      rdfs:subClassOf ep-well:SpatialPartOfAWellBore .
+
+ep-well:WellBoreTightnessType
+      rdf:type rdfs:Class ;
+      rdfs:comment "class of wellbore on the basis of whether or not it is leaky"^^xsd:string ;
+      rdfs:label "well bore tightness type"^^xsd:string ;
+      rdfs:subClassOf owl:Class .
+
+ep-well:WellBoreWithCirculation
+      rdf:type owl:Class ;
+      rdfs:comment "wellbore that has circulation"^^xsd:string ;
+      rdfs:label "well bore with circulation"^^xsd:string ;
+      rdfs:subClassOf ep-well:TemporalPartOfAWellBore ;
+      owl:disjointWith ep-well:WellBoreWithoutCirculation .
+
+ep-well:WellBoreWithoutCirculation
+      rdf:type owl:Class ;
+      rdfs:comment "wellbore that does not have circulation"^^xsd:string ;
+      rdfs:label "well bore without circulation"^^xsd:string ;
+      rdfs:subClassOf ep-well:TemporalPartOfAWellBore ;
+      owl:disjointWith ep-well:WellBoreWithCirculation .
+
+ep-well:WellGroup
+      rdf:type owl:Class ;
+      rdfs:comment "not used in the DDR"^^xsd:string ;
+      rdfs:label "well group"^^xsd:string ;
+      rdfs:subClassOf ep-core:PhysicalObject .
+
+ep-well:WellHead
+      rdf:type owl:Class ;
+      rdfs:comment "spatial part of a well that is a well head"^^xsd:string ;
+      rdfs:label "well head"^^xsd:string ;
+      rdfs:subClassOf ep-well:SpatialPartOfAWell .
+
+ep-well:averageBottomHolePressure
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the average pressure at the bottom of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:TemporalPartOfAWellBore ;
+      rdfs:label "average bottom hole pressure"^^xsd:string ;
+      rdfs:range ep-core:Pressure .
+
+ep-well:averageBottomHoleTemperature
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the average temperature at the bottom of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:TemporalPartOfAWellBore ;
+      rdfs:label "average bottom hole temperature"^^xsd:string ;
+      rdfs:range ep-core:Temperature .
+
+ep-well:azimuth
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the inclination of wellbore orientation at a position within a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:PositionWithinWellBore ;
+      rdfs:label "azimuth"^^xsd:string ;
+      rdfs:range ep-core:PlaneAngle .
+
+ep-well:bottomHoleMeasuredDepth
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the measured depth to the bottom of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:TemporalPartOfAWellBore ;
+      rdfs:label "bottom hole measured depth"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-well:bottomHoleTemperature
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the temperature at the bottom of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:TemporalPartOfAWellBore ;
+      rdfs:label "bottom hole temperature"^^xsd:string ;
+      rdfs:range ep-core:Temperature .
+
+ep-well:bottomHoleTrueVerticalDepth
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the true vertical depth of the bottom of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:TemporalPartOfAWellBore ;
+      rdfs:label "bottom hole true vertical depth"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-well:cementingFluidPerCentFreeWater
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the percentage free water by volume within a cementing fluid"^^xsd:string ;
+      rdfs:domain ep-well:CementingFluid ;
+      rdfs:label "cementing fluid per cent free water"^^xsd:string ;
+      rdfs:range ep-core:VolumePerUnitVolumeConcentration .
+
+ep-well:cementingFluidThickeningTime
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the thickening time for a cementing fluid"^^xsd:string ;
+      rdfs:domain ep-well:CementingFluid ;
+      rdfs:label "cementing fluid thickening time"^^xsd:string ;
+      rdfs:range ep-core:TimeDuration .
+
+ep-well:coreLength
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the length of a recovered core"^^xsd:string ;
+      rdfs:domain ep-well:RecoveredCore ;
+      rdfs:label "core length"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-well:diameterOfAWellBorePilotHole
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the diameter of a wellbore pilot hole"^^xsd:string ;
+      rdfs:domain ep-well:WellBorePilotHole ;
+      rdfs:label "diameter of a wellbore pilot hole"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-well:dominantComponent
+      rdf:type owl:ObjectProperty ;
+      rdfs:comment "fluid component type of the dominant component of a fluid"^^xsd:string ;
+      rdfs:domain <http://www.reportinghub.no/ep/schema/material#Fluid> ;
+      rdfs:label "dominant component"^^xsd:string ;
+      rdfs:range ep-well:FluidComponentType .
+
+ep-well:finalBottomHoleMeasuredDepth
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the measured depth to the bottom of a wellbore at the end of a temporal part of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:TemporalPartOfAWellBore ;
+      rdfs:label "final bottom hole measured depth"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-well:finalBottomHoleTrueVerticalDepth
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the true vertical dept of the bottom of a wellbore at the end of a temporal part of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:TemporalPartOfAWellBore ;
+      rdfs:label "final bottom hole true vertical depth"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-well:gasConcentrationHigh
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the highest gas concentration by volume within a temporal part of a fluid"^^xsd:string ;
+      rdfs:domain <http://www.reportinghub.no/ep/schema/material#Fluid> ;
+      rdfs:label "gas concentration - high"^^xsd:string ;
+      rdfs:range ep-core:VolumePerUnitVolumeConcentration .
+
+ep-well:gasConcentrationLow
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the lowest gas concentration by volume within a temporal part of a fluid"^^xsd:string ;
+      rdfs:domain <http://www.reportinghub.no/ep/schema/material#Fluid> ;
+      rdfs:label "gas concentration - low"^^xsd:string ;
+      rdfs:range ep-core:VolumePerUnitVolumeConcentration .
+
+ep-well:hasBarrel
+      rdf:type owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "inner barrel of a recovered core"^^xsd:string ;
+      rdfs:domain ep-well:RecoveredCore ;
+      rdfs:label "has barrel"^^xsd:string ;
+      rdfs:range <http://www.reportinghub.no/ep/schema/equipment#InnerBarrel> .
+
+ep-well:inclination
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the inclination of wellbore orientation at a position within a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:PositionWithinWellBore ;
+      rdfs:label "inclination"^^xsd:string ;
+      rdfs:range ep-core:PlaneAngle .
+
+ep-well:initialBottomHoleMeasuredDepth
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the measured depth to the bottom of a wellbore at the beginning of a temporal part of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:TemporalPartOfAWellBore ;
+      rdfs:label "initial bottom hole measured depth"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-well:lithologyDescription
+      rdf:type owl:DatatypeProperty ;
+      rdfs:comment "description of the lithology at a spatial part of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:SpatialPartOfAWellBore ;
+      rdfs:label "lithology description"^^xsd:string .
+
+ep-well:measuredDepth
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the measured depth of a spatial part of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:SpatialPartOfAWellBore ;
+      rdfs:label "measured depth"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-well:measuredDepthOfPlugTop
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the measured depth of the plug top of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:TemporalPartOfAWellBore ;
+      rdfs:label "measured depth of plug top"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-well:measuredDepthToTheBottomOfAPartOfAWellBore
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the measured depth to the bottom of a spatial part of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:SpatialPartOfAWellBore ;
+      rdfs:label "measured depth to the bottom of a part of a wellbore"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-well:measuredDepthToTheTopOfAPartOfAWellBore
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the measured depth to the top of a spatial part of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:SpatialPartOfAWellBore ;
+      rdfs:label "measured depth to the top of a part of a wellbore"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-well:nominalInsideDiameterOfBoreHole
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the nominal diameter of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:TemporalPartOfAWellBore ;
+      rdfs:label "nominal inside diameter of borehole"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-well:plannedBottomHoleMeasuredDepth
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the planned measured depth to the bottom of a wellbore at the end of a temporal part of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:TemporalPartOfAWellBore ;
+      rdfs:label "planned bottom hole measured depth"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-well:plannedPilotBottomHoleMeasuredDepth
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the planned measured depth to the bottom of the pilot hole of a wellbore at the end of a temporal part of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:WellBorePilotHole ;
+      rdfs:label "planned pilot bottom hole measured depth"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-well:plannedPilotBottomHoleTrueVerticalDepth
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the planned true vertical depth of the bottom of the pilot hole of a wellbore at the end of a temporal part of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:WellBorePilotHole ;
+      rdfs:label "planned pilot bottom hole true vertical depth"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-well:porePressure
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the pore pressure at a spatial part of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:SpatialPartOfAWellBore ;
+      rdfs:label "pore pressure"^^xsd:string ;
+      rdfs:range ep-core:Pressure .
+
+ep-well:porePressureEquivalentMudDensity
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the equipvalent mud density to the pore pressure at a spatial part of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:TemporalPartOfAWellBore ;
+      rdfs:label "pore pressure - equivalent mud density"^^xsd:string ;
+      rdfs:range ep-core:Density .
+
+ep-well:ratioOfCementMixToWater
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the volumetric ratio of cement mix to water for a cementing fluid"^^xsd:string ;
+      rdfs:domain ep-well:CementingFluid ;
+      rdfs:label "ratio of cement mix to water"^^xsd:string ;
+      rdfs:range ep-core:VolumePerUnitVolumeConcentration .
+
+ep-well:relativeAmountOfCoreRecovered
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the relative amount of core recovered by volume"^^xsd:string ;
+      rdfs:domain ep-well:RecoveredCore ;
+      rdfs:label "relative amount of core recovered"^^xsd:string ;
+      rdfs:range ep-core:VolumePerUnitVolumeConcentration .
+
+ep-well:showDescription
+      rdf:type owl:DatatypeProperty ;
+      rdfs:comment "description of the show at a spatial part of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:SpatialPartOfAWellBore ;
+      rdfs:label "show description"^^xsd:string .
+
+ep-well:shutInCasingPressure
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the shut in casing pressure for a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:TemporalPartOfAWellBore ;
+      rdfs:label "shut in casing pressure"^^xsd:string ;
+      rdfs:range ep-core:Pressure .
+
+ep-well:shutInDrillPipePressure
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the shut in drill pipe pressure for a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:TemporalPartOfAWellBore ;
+      rdfs:label "shut in drill pipe pressure"^^xsd:string ;
+      rdfs:range ep-core:Pressure .
+
+ep-well:stratigraphyDescription
+      rdf:type owl:DatatypeProperty ;
+      rdfs:comment "description of the stratigraphy at a spatial part of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:SpatialPartOfAWellBore ;
+      rdfs:label "stratigraphy description"^^xsd:string .
+
+ep-well:strengthOfRockFormation
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the strength of a surrounding rock formation"^^xsd:string ;
+      rdfs:domain ep-well:SurroundingRockFormation ;
+      rdfs:label "strength of rock formation"^^xsd:string ;
+      rdfs:range ep-core:StrengthOfRockFormation .
+
+ep-well:trueVerticalDepth
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the true vertical depth to a spatial part of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:SpatialPartOfAWellBore ;
+      rdfs:label "true vertical depth"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-well:trueVerticalDepthToTheBottomOfAPartOfAWellBore
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the true vertical depth of the bottom of a spatial part of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:SpatialPartOfAWellBore ;
+      rdfs:label "true vertical depth to the bottom of a part of a wellbore"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-well:trueVerticalDepthToTheTopOfAPartOfAWellBore
+      rdf:type ep-core:Class_of_indirect_property , owl:FunctionalProperty , owl:ObjectProperty ;
+      rdfs:comment "class_of_indirect_property that is the true vertical depth of the top of a spatial part of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:SpatialPartOfAWellBore ;
+      rdfs:label "true vertical depth to the top of a part of a wellbore"^^xsd:string ;
+      rdfs:range ep-core:Length .
+
+ep-well:wellBoreCompletedAt
+      rdf:type owl:DatatypeProperty , owl:FunctionalProperty ;
+      rdfs:comment "UTC representation of the time at which a wellbore was completed"^^xsd:string ;
+      rdfs:domain ep-well:TemporalPartOfAWellBore ;
+      rdfs:label "wellbore completed at"^^xsd:string .
+
+ep-well:wellBorePreSpudAt
+      rdf:type owl:DatatypeProperty , owl:FunctionalProperty ;
+      rdfs:comment "UTC representation of the time at of the pre-spud for a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:TemporalPartOfAWellBore ;
+      rdfs:label "wellbore pre-spud at"^^xsd:string .
+
+ep-well:wellBoreSpudAt
+      rdf:type owl:DatatypeProperty , owl:FunctionalProperty ;
+      rdfs:comment "UTC representation of the time of spud of a wellbore"^^xsd:string ;
+      rdfs:domain ep-well:TemporalPartOfAWellBore ;
+      rdfs:label "wellbore spud at"^^xsd:string .