https://w3id.org/framester/conceptnet5/data/en/world_war_i <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/world.n> <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/conflict> <https://w3id.org/framester/conceptnet5/data/en/event> risorse dalla linked data cloud