https://w3id.org/framester/conceptnet5/data/en/oxygenase <https://w3id.org/framester/conceptnet5/schema/EtymologicallyDerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/oxygen> <https://w3id.org/framester/conceptnet5/data/en/ase> <https://w3id.org/framester/conceptnet5/cla/de.oxygenase> risorse dalla linked data cloud