https://w3id.org/framester/conceptnet5/data/en/hydrocyanic_acid <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/acid> <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/weak_acid> <https://w3id.org/framester/conceptnet5/data/en/chemically_acidic_substance> <https://w3id.org/framester/conceptnet5/data/en/arrhenius_acid> <https://w3id.org/framester/conceptnet5/data/en/monoprotic_acid> <https://w3id.org/framester/conceptnet5/data/en/weak_electrolyte> risorse dalla linked data cloud