https://w3id.org/framester/conceptnet5/data/en/sharpen.v <https://w3id.org/framester/conceptnet5/schema/Antonym> <https://w3id.org/framester/conceptnet5/data/en/blunt> <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/sharp> risorse dalla linked data cloud