https://w3id.org/framester/conceptnet5/cla/oj.odaawaa.n <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/ottawa> <https://w3id.org/framester/conceptnet5/data/en/trader> risorse dalla linked data cloud