#boat  a small vessel for travel on water
  supertype:  vessel.craft__watercraft  a craft designed for water transportation
  subtype:  ark  barge  bumboat  canal_boat  ferry  fireboat  gondola  guard_boat  gunboat  junk  longboat  lugger  Mackinaw_boat  mailboat  motorboat  pilot_boat  police_boat  punt  river_boat  scow.boat  sea_boat  sharpie  small_boat  steamboat  surfboat  ship's_boat  tugboat
  part:  boat_whistle  a whistle on a boat that is sounded as a warning

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