https://w3id.org/framester/conceptnet5/data/en/endorphin <https://w3id.org/framester/conceptnet5/schema/EtymologicallyDerivedFrom> <https://w3id.org/framester/conceptnet5/cla/fr.endorphine> <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/protein_molecule> <https://w3id.org/framester/conceptnet5/data/en/endogeneous_opiod_peptide> risorse dalla linked data cloud