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