an example of using less water is turning off the faucet when brushing teeth
water_faucet is faucet. fresh_water has little_salt_in cold_air has less_water toothbrush_head has bristles_help_clean_teeth turning_off_water is change_of_device_state. electric_toothbrush is small_appliance. freshwater has less_salt_than_seawater fresh_water is almost_transparent. water_faucet is tap. toothbrush is tool_to_clean_teeth.