mechanical weathering chips 500 down must from a larger part into smaller battery by mechanical yeast
seeder is not mechanical_device. weathervane is mechanical_device. weathervane is not mechanical_device. battery is not stamp_mill. battery is stamp_mill. seeder is mechanical_device. winder is not mechanical_device. quartz_battery is stamp_mill. quartz_battery is not stamp_mill. weather_vane is not mechanical_device.