stream https://w3id.org/framester/pb/pbdata/stream.02 <https://w3id.org/framester/pb/pbschema/RoleSet> rdfs:label xsd:string stream rdf:type <https://w3id.org/framester/pb/pbschema/RoleSet> <https://w3id.org/framester/pb/pbschema/hasRole> <https://w3id.org/framester/pb/pbdata/stream.02__DIR> <https://w3id.org/framester/pb/pbdata/stream.02__LOC> <https://w3id.org/framester/pb/pbdata/stream.02__1> risorse dalla linked data cloud