https://w3id.org/framester/conceptnet5/data/en/magnesium_oxide <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/oxide.n> <https://w3id.org/framester/conceptnet5/data/en/magnesium.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/IsA> <https://w3id.org/framester/conceptnet5/data/en/salt> <https://w3id.org/framester/conceptnet5/data/en/base> <https://w3id.org/framester/conceptnet5/data/en/inorganic_compound> <https://w3id.org/framester/conceptnet5/data/en/ionic_compound> <https://w3id.org/framester/conceptnet5/data/en/electrolyte> risorse dalla linked data cloud