https://w3id.org/framester/conceptnet5/data/en/wwii <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/large_war> <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/world_war_ii> <https://w3id.org/framester/conceptnet5/data/en/wwi> risorse dalla linked data cloud