https://w3id.org/framester/conceptnet5/data/en/gregory_benford <https://w3id.org/framester/conceptnet5/schema/InstanceOf> <https://w3id.org/framester/conceptnet5/data/en/person> <https://w3id.org/framester/conceptnet5/data/en/writer> <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/writer> <https://w3id.org/framester/conceptnet5/schema/dbpedia.genre> <https://w3id.org/framester/conceptnet5/data/en/science_fiction> risorse dalla linked data cloud