#balloon  large tough non-rigid bag filled with gas or hot air
  supertype:  lighter-than-air_craft  aircraft supported by its own buoyancy
  subtype:  hot-air_balloon  meteorological_balloon  trial_balloon.balloon
  part:  gasbag__envelope  the bag containing the gas in a balloon
  part:  ripcord.cord  a cord that is pulled to open the gasbag of a balloon wide enough to release gas and so causes the balloon to descend

No statement uses or specializes balloon; click here to add one.