Trying out labels on userfield prpoerties

@@ -2534,6 +2534,7 @@ NOTE 2  A Plan for Activity can define a number of part activities which are rel
 .
 :hasExternalReference
   rdf:type owl:ObjectProperty ;
+  rdfs:label "has External Reference"^^xsd:string ;
 .
 :hasField
   rdf:type owl:DatatypeProperty ;
@@ -2906,6 +2907,9 @@ userfield:SpecifiedUserField_1
 userfield:hasFreeFieldForSpecifiedUserField
   rdf:type owl:ObjectProperty ;
 .
+userfield:hasProjectCode
+  rdfs:label "has Project Code"^^xsd:string ;
+.
 userfield:hasShutDownPeriod
   rdfs:label "has Shutdown Period"^^xsd:string ;
 .