https://w3id.org/framester/conceptnet5/data/en/grad <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/deg> <https://w3id.org/framester/conceptnet5/data/en/rad> <https://w3id.org/framester/conceptnet5/data/en/gradian> risorse dalla linked data cloud