drop https://w3id.org/framester/pb/pbdata/drop.05 <https://w3id.org/framester/pb/pbschema/RoleSet> rdfs:label xsd:string drop rdf:type <https://w3id.org/framester/pb/pbschema/RoleSet> <https://w3id.org/framester/pb/pbschema/hasRole> <https://w3id.org/framester/pb/pbdata/drop.05__0> <https://w3id.org/framester/pb/pbdata/drop.05__1> <https://w3id.org/framester/pb/pbdata/drop.05__2> risorse dalla linked data cloud