https://w3id.org/framester/conceptnet5/cla/la.annullo.v <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/annul> <https://w3id.org/framester/conceptnet5/data/en/annihilate> risorse dalla linked data cloud