#rescue_equipment  equipment used to rescue passengers in case of emergency
  supertype:  equipment  an instrumentality needed for an undertaking or to perform a service
  subtype:  life_preserver__preserver__flotation_device__flotationdevice  rescue equipment consisting of a buoyant belt or jacket to keep a person from drowning
     subtype:  life_buoy__lifesaver__life_belt__life_ring  a life preserver in the form of a ring of buoyant material
        subtype:  breeches_buoy  a life buoy in the form of a ring with short breeches for support; used to transfer people from a ship
     subtype:  life_jacket__life_vest__cork_jacket  life preserver consisting of a sleeveless jacket of buoyant or inflatable design
        subtype:  air_jacket__airjacket__Mae_West  an inflatable life jacket
     subtype:  water_wings__waterwing  a life preserver consisting of a connected pair of inflatable bags that fit under a person's arms and provide buoyancy; used by children learning to swim
  subtype:  parachute  rescue equipment consisting of a device that fills with air and retards your fall
     subtype:  drogue_chute__drogue__drogue_parachute  a parachute used to decelerate an object that is moving rapidly
     subtype:  drogue_parachute  a small parachute that pulls the main parachute from its storage pack
     subtype:  parasail  parachute that will lift a person up into the air when it is towed by a motorboat or a car

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