https://w3id.org/framester/conceptnet5/data/en/lignite <https://w3id.org/framester/conceptnet5/schema/DerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/lign> <https://w3id.org/framester/conceptnet5/schema/EtymologicallyDerivedFrom> <https://w3id.org/framester/conceptnet5/data/en/ite> <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/tangible_thing> <https://w3id.org/framester/conceptnet5/data/en/natural_substance> risorse dalla linked data cloud