https://w3id.org/framester/conceptnet5/data/en/linear_thing <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/intangible_individual_object> <https://w3id.org/framester/conceptnet5/data/en/spatial_thing_with_one_or_more_dimension> risorse dalla linked data cloud