#rung__round__stave  a crosspiece between the legs of a chair
  supertype:  #crosspiece  a transverse brace
  part of:  #folding_chair__foldingchair  a chair that can be folded flat for storage
  part of:  #highchair__feeding_chair__feedingchair  a chair for feeding a very young child; has four long legs and a footrest and a detachable tray
  part of:  #rocking_chair__rockingchair__rocker  a chair mounted on rockers
  part of:  #straight_chair__side_chair  a straight-backed chair without arms

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