https://w3id.org/framester/conceptnet5/data/en/yttria.n <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/oxide> <https://w3id.org/framester/conceptnet5/data/en/yttrium> <https://w3id.org/framester/conceptnet5/schema/Synonym> <https://w3id.org/framester/conceptnet5/data/en/oxide> <https://w3id.org/framester/conceptnet5/data/en/yttrium> <https://w3id.org/framester/conceptnet5/data/en/trioxide> risorse dalla linked data cloud