https://w3id.org/framester/conceptnet5/data/en/reciprocation <https://w3id.org/framester/conceptnet5/schema/EtymologicallyDerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/ion> <https://w3id.org/framester/conceptnet5/data/en/reciprocate> risorse dalla linked data cloud