https://w3id.org/framester/conceptnet5/data/en/yttrium <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/ytterby.n> <https://w3id.org/framester/conceptnet5/data/en/yttria.n> <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/element> <https://w3id.org/framester/conceptnet5/data/en/chemical_element> <https://w3id.org/framester/conceptnet5/data/en/unalloyed_metal> <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/bastnasite> risorse dalla linked data cloud