occur https://w3id.org/framester/pb/pbdata/occur.01 <https://w3id.org/framester/pb/pbschema/RoleSet> rdfs:label xsd:string occur rdf:type <https://w3id.org/framester/pb/pbschema/RoleSet> <https://w3id.org/framester/pb/pbschema/hasRole> <https://w3id.org/framester/pb/pbdata/occur.01__TMP> <https://w3id.org/framester/pb/pbdata/occur.01__1> <https://w3id.org/framester/pb/pbdata/occur.01__LOC> risorse dalla linked data cloud