Added volumePerVolume scale

-# Saved by TopBraid on Sat Oct 08 14:19:39 BST 2011
-# baseURI: http://www.reportinghub.no/ep/schema/1.0/production-equipment
-# imports: http://www.reportinghub.no/ep/schema/1.0/equipment
-
-@prefix ep-prodeqt:  <http://www.reportinghub.no/ep/schema/production-equipment#> .
-@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/production-equipment>
-      rdf:type owl:Ontology ;
-      owl:imports <http://www.reportinghub.no/ep/schema/1.0/equipment> ;
-      owl:versionInfo "Created with TopBraid Composer"^^xsd:string .
+# baseURI: http://www.reportinghub.no/ep/schema/1.0/production-equipment
+# imports: http://www.reportinghub.no/ep/schema/1.0/equipment
+# imports: http://www.reportinghub.no/ep/schema/1.0/production-organization
+
+@prefix ep-prodeqt:  <http://www.reportinghub.no/ep/schema/production-equipment#> .
+@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/production-equipment>
+      rdf:type owl:Ontology ;
+      owl:imports <http://www.reportinghub.no/ep/schema/1.0/production-organization> , <http://www.reportinghub.no/ep/schema/1.0/equipment> ;
+      owl:versionInfo "Created with TopBraid Composer"^^xsd:string .
+
+ep-prodeqt:CargoShip
+      rdf:type owl:Class ;
+      rdfs:label "cargo ship"^^xsd:string ;
+      rdfs:subClassOf ep-prodeqt:Vessel .
+
+ep-prodeqt:Vessel
+      rdf:type owl:Class ;
+      rdfs:label "vessel"^^xsd:string ;
+      rdfs:subClassOf <http://www.reportinghub.no/ep/schema/equipment#Equipment> .
+
+ep-prodeqt:hasCaptain
+      rdf:type owl:ObjectProperty , owl:FunctionalProperty ;
+      rdfs:domain ep-prodeqt:Vessel ;
+      rdfs:label "has captain"^^xsd:string ;
+      rdfs:range <http://www.reportinghub.no/ep/schema/production-organization#Person> .