#straight_chair__side_chair  a straight-backed chair without arms
  supertype:  #chair  a seat for one person, with a support for the back
  subtype:  #Windsor_chair  straight chair having a shaped seat and a back of many spindles
  part:  #rung__round__stave  a crosspiece between the legs of a chair
  part:  #splat  a slat of wood in the middle of the back of a straight chair

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