https://w3id.org/framester/conceptnet5/data/en/transportation_topic <https://w3id.org/framester/conceptnet5/schema/IsA> <https://w3id.org/framester/conceptnet5/data/en/human_activity_topic> <https://w3id.org/framester/conceptnet5/data/en/movement_topic> risorse dalla linked data cloud