#plate_glass__plateglas__sheet_glass__sheetglas  glass formed into large thin sheets
  supertype:  flat_solid__sheet  a flat artifact that is thin relative to its length and width
  substance:  glass
  subtype:  pane_of_glass__pane__window_glass  sheet glass cut in shapes for windows or doors
     subtype:  windowpane__window  a pane in a window; "the ball shattered the window"

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