#chad  a small piece of paper that is supposed to be removed when a hole is punched in a card or paper tape
  supertype:  paper  a material made of cellulose pulp derived mainly from wood or rags or certain grasses
  subtype:  dimpled_chad__dimpledchad__pregnant_chad__dimple  a chad that has been punched or dimpled but all four corners are still attached
  subtype:  hanging_chad__hangingchad  a chad that is incompletely removed and hanging by one corner
  subtype:  swinging_chad  a chad that is incompletely removed and still attached at two corners
  subtype:  tri-chad__trichad  a chad that is incompletely removed and still attached at three corners

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