https://w3id.org/framester/conceptnet5/data/en/paul_schrader <https://w3id.org/framester/conceptnet5/schema/InstanceOf> <https://w3id.org/framester/conceptnet5/data/en/person> <https://w3id.org/framester/conceptnet5/data/en/screenwriter> <https://w3id.org/framester/conceptnet5/data/en/film_director> risorse dalla linked data cloud