https://w3id.org/framester/conceptnet5/data/en/iowa.n <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/native_american> <https://w3id.org/framester/conceptnet5/data/en/de_moines> risorse dalla linked data cloud