#steam_whistle__steamwhistle  a whistle in which the sound is produced by steam; usually attached to a steam boiler
  supertype:  whistle  acoustic device that forces air or steam against an edge or into a cavity and so produces a loud shrill sound
  part of:  steam_boiler__steamboiler__boiler  sealed vessel where water is converted to steam
     part of:  heating_system__heatingsystem__heating_plant__heatingplant__heating__heat  utility to warm a building; "the heating system wasn't working"; "they have radiant heating"
        part of:  edifice__building  a structure that has a roof and walls and stands more or less permanently in one place; "there was a three-story building on the corner"; "it was an imposing edifice"
     part of:  steam_engine__steamengine  external-combustion engine in which heat is used to raise steam which either turns a turbine or forces a piston to move up and down in a cylinder
        part of:  steamship__steamer  a ship powered by one or more steam engines
        part of:  steam_locomotive__steamlocomotive  a locomotive powered by a steam engine
  part of:  calliope__steam_organ__steamorgan  a musical instrument consisting of a series of steam whistles played from a keyboard

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