Added documentation example for Calendar

@@ -679,6 +679,7 @@
 .
 :Calendar1
   rdf:type :Calendar ;
+  rdfs:label "Calendar 1"^^xsd:string ;
 .
 :CalendarDay
   rdf:type owl:Class ;
@@ -731,7 +732,7 @@
 :CalendarSet
   rdf:type owl:Class ;
   :shouldHaveID "true" ;
-  rdfs:comment "An Information Object that is a collection of Calendars."^^xsd:string ;
+  rdfs:comment "A Class that is a collection of Calendars."^^xsd:string ;
   rdfs:label "Calendar Set"^^xsd:string ;
   rdfs:subClassOf owl:Class ;
   rdfs:subClassOf [
@@ -1154,6 +1155,11 @@
   rdf:type rdfs:Class ;
   rdfs:subClassOf :PlanForEvent ;
 .
+:EngineeringManhours
+  rdf:type owl:Class ;
+  rdfs:subClassOf :TimeBasedResource ;
+  rdfs:subClassOf SCCS:COR_K ;
+.
 :EquipmentShutdown
   rdf:type :ShutdownType ;
   rdfs:label "Equipment Shutdown"^^xsd:string ;
@@ -2901,6 +2907,12 @@ NOTE 2  A Plan for Activity can define a number of part activities which are rel
   rdfs:subClassOf [
       rdf:type owl:Restriction ;
       owl:minQualifiedCardinality "0"^^xsd:nonNegativeInteger ;
+      owl:onClass :Calendar ;
+      owl:onProperty :hasCalendar ;
+    ] ;
+  rdfs:subClassOf [
+      rdf:type owl:Restriction ;
+      owl:minQualifiedCardinality "0"^^xsd:nonNegativeInteger ;
       owl:onClass :CompletelyFreeField ;
       owl:onProperty :hasCompletelyFreeFieldDefinition ;
     ] ;