https://w3id.org/framester/conceptnet5/data/en/phosphorous.a <https://w3id.org/framester/conceptnet5/schema/RelatedTo> <https://w3id.org/framester/conceptnet5/data/en/phosphorus> <https://w3id.org/framester/conceptnet5/data/en/trivalent> <https://w3id.org/framester/conceptnet5/data/en/phosphoric> <https://w3id.org/framester/conceptnet5/schema/Synonym> <https://w3id.org/framester/conceptnet5/data/en/phosphoric> risorse dalla linked data cloud