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