https://w3id.org/framester/conceptnet5/data/en/cavity_or_container <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/attribute> <https://w3id.org/framester/conceptnet5/data/en/localize_spatial_thing> risorse dalla linked data cloud