#headboard  a vertical board or panel forming the head of a bedstead
  supertype:  #panel  sheet that forms a distinct (usually flat) section or component of something
  part of:  #bedstead__bedframe  the framework of a bed
     part of:  #bed  a piece of furniture that provides a place to sleep; "he sat on the edge of the bed"; "the room had only a bed and chair"

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