https://w3id.org/framester/conceptnet5/cla/la.purus.a <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/clear> <https://w3id.org/framester/conceptnet5/data/en/clean> <https://w3id.org/framester/conceptnet5/data/en/pure> <https://w3id.org/framester/conceptnet5/data/en/limpid> risorse dalla linked data cloud