https://w3id.org/framester/conceptnet5/data/en/isthmus <https://w3id.org/framester/conceptnet5/schema/EtymologicallyDerivedFrom> <https://w3id.org/framester/conceptnet5/cla/la.isthmus> <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/land_topographical_feature> <https://w3id.org/framester/conceptnet5/data/en/natural_thing> <https://w3id.org/framester/conceptnet5/data/en/physical_path> risorse dalla linked data cloud