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