#panel  sheet that forms a distinct (usually flat) section or component of something
  supertype:  flat_solid__sheet  a flat artifact that is thin relative to its length and width
  subtype:  coffer.panel__caisson  an ornamental sunken panel in a ceiling or dome
  subtype:  footboard  a vertical board or panel forming the foot of a bedstead
  subtype:  headboard  a vertical board or panel forming the head of a bedstead
  subtype:  paneling__panelling__pane  a panel or section of panels in a wall or door
     subtype:  wall_panel  paneling that forms part of a wall
  subtype:  wainscoting__wainscot__wainscotting  wooden panel used to line the walls of a room
  subtype:  wainscot__dado  panel forming the lower part of an interior wall when it is finished differently from the rest
  subtype:  window.panel  a transparent panel (as of an envelope) inserted in an otherwise opaque material

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