Documentation of schemas for the RDL

@@ -30,7 +30,7 @@ ep-report:DailyDrillingReport
       rdfs:subClassOf ep-report:DrillingReport .
 
 ep-report:DailyDrillingReportFinalisationType
-      rdf:type owl:Class ;
+      rdf:type rdfs:Class ;
       rdfs:comment "class that consists of the subclasses of report defined by the OpsReportVersion enumeration in the DDR-XSD"^^xsd:string ;
       rdfs:label "daily drilling report finalisation type"^^xsd:string ;
       rdfs:subClassOf owl:Class .