https://w3id.org/framester/wn/wn30/instances/word-concave_shape <https://w3id.org/framester/wn/wn30/schema/Word> <https://w3id.org/framester/wn/wn30/schema/lexicalForm> concave shape rdf:type <https://w3id.org/framester/wn/wn30/schema/Word> risorse dalla linked data cloud