https://w3id.org/framester/conceptnet5/data/en/refinement <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/process> <https://w3id.org/framester/conceptnet5/data/en/separate> <https://w3id.org/framester/conceptnet5/data/en/manufacture> risorse dalla linked data cloud