@prefix rdf: . @prefix oplwebservices: . oplwebservices:isRequired rdf:type rdf:Property . @prefix owl: . oplwebservices:isRequired rdf:type owl:DatatypeProperty . @prefix rdfs: . oplwebservices:isRequired rdfs:domain oplwebservices:WebServiceParameter ; rdfs:isDefinedBy oplwebservices: ; rdfs:label "isRequired" . @prefix xsd: . oplwebservices:isRequired rdfs:range xsd:boolean . @prefix pwdr: . oplwebservices:isRequired pwdr:describedby . @prefix ns6: . oplwebservices:isRequired pwdr:describedby ns6:webservices , . @prefix skos: . oplwebservices:isRequired skos:altLabel "isMandatory" . @prefix schema: . oplwebservices:isRequired schema:comment "Indicates if a URI or URL parameter is mandatory (i.e., required) with regards to associated Action invocation" , "Indicates parameter is mandatory (i.e., required) with regards to associated Action invocation" .