https://w3id.org/framester/wn/wn30/instances/word-ladder-proof <https://w3id.org/framester/wn/wn30/schema/Collocation> <https://w3id.org/framester/wn/wn30/schema/lexicalForm> ladder-proof rdf:type <https://w3id.org/framester/wn/wn30/schema/Collocation> risorse dalla linked data cloud