https://w3id.org/framester/conceptnet5/data/en/irrational.a <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/integer> <https://w3id.org/framester/conceptnet5/data/en/nonsensical> <https://w3id.org/framester/conceptnet5/data/en/real_number> <https://w3id.org/framester/conceptnet5/data/en/rational> risorse dalla linked data cloud