https://w3id.org/framester/conceptnet5/data/en/oceanid <https://w3id.org/framester/conceptnet5/schema/InstanceOf> <https://w3id.org/framester/conceptnet5/data/en/musical_work> <https://w3id.org/framester/conceptnet5/data/en/classical_music_composition> risorse dalla linked data cloud