https://w3id.org/framester/conceptnet5/data/en/retroflex <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/retro> <https://w3id.org/framester/conceptnet5/schema/EtymologicallyDerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/ed> <https://w3id.org/framester/conceptnet5/data/en/retroflex> <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/coronal.a.phonetics> risorse dalla linked data cloud