ARG1-PPT: letter https://w3id.org/framester/pb/data/role/mail-01/letter <https://w3id.org/framester/pb/schema/Role> skos:definition letter rdfs:comment letter rdfs:label ARG1-PPT: letter rdf:type <https://w3id.org/framester/pb/schema/Role> <https://w3id.org/framester/schema/subsumedUnder> <https://w3id.org/framester/pb/schema/ARG1> <https://w3id.org/framester/pb/data/role/letter> <https://w3id.org/framester/pb/schema/ARGM-PPT> risorse dalla linked data cloud