fix https://w3id.org/framester/pb/pbdata/fix.03 <https://w3id.org/framester/pb/pbschema/RoleSet> rdfs:label xsd:string fix rdf:type <https://w3id.org/framester/pb/pbschema/RoleSet> <https://w3id.org/framester/pb/pbschema/hasRole> <https://w3id.org/framester/pb/pbdata/fix.03__0> <https://w3id.org/framester/pb/pbdata/fix.03__1> <https://w3id.org/framester/pb/pbdata/fix.03__2> risorse dalla linked data cloud