https://w3id.org/framester/conceptnet5/data/en/silicon_dioxide <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/silicon.n> <https://w3id.org/framester/conceptnet5/data/en/dioxide.n> <https://w3id.org/framester/conceptnet5/schema/InstanceOf> <https://w3id.org/framester/conceptnet5/data/en/chemical_compound> <https://w3id.org/framester/conceptnet5/data/en/chemical_substance> <https://w3id.org/framester/conceptnet5/schema/Synonym> <https://w3id.org/framester/conceptnet5/data/en/silica> risorse dalla linked data cloud