https://w3id.org/framester/conceptnet5/data/en/centroid_color_130 <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/chromatic_color> <https://w3id.org/framester/conceptnet5/data/en/emerald_thing> risorse dalla linked data cloud