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