opposite are made of ball cooling
opposites is not two_things. cooling_water is not cooling_process. cooling_device is not non_agentive_artifact. opposites is two_things. air_cooling_device is not cooling_device. cooling_air is not cooling_process. cooler is not cooling_device. cooling_air is cooling_process. cooler is cooling_device. cooling_device is non_agentive_artifact.