https://w3id.org/framester/conceptnet5/data/en/douglas_hofstadter <https://w3id.org/framester/conceptnet5/schema/InstanceOf> <https://w3id.org/framester/conceptnet5/data/en/person> <https://w3id.org/framester/conceptnet5/data/en/scientist> <https://w3id.org/framester/conceptnet5/data/en/professor> <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/artist> <https://w3id.org/framester/conceptnet5/data/en/writer> risorse dalla linked data cloud