https://w3id.org/framester/conceptnet5/data/en/logical_connective <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/logical_constant.n> <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/syncategorematic> risorse dalla linked data cloud