https://w3id.org/framester/conceptnet5/data/en/catsup <https://w3id.org/framester/conceptnet5/schema/AtLocation> <https://w3id.org/framester/conceptnet5/data/en/refrigerator> <https://w3id.org/framester/conceptnet5/schema/Synonym> <https://w3id.org/framester/conceptnet5/data/en/ketchup> risorse dalla linked data cloud