https://w3id.org/framester/conceptnet5/data/en/six_bob_day_tourist.n <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/soldier> <https://w3id.org/framester/conceptnet5/data/en/world_war_i> risorse dalla linked data cloud