#short_ton__shortton__ton__net_ton__netton  a United States unit of weight equivalent to 2000 pounds
  supertype:  #avoirdupois_unit__avoirdupoisunit  any of the units of the avoirdupois system of weights
  part:  #short_hundredweight
  part of:  #kiloton.avoirdupois_unit  one thousand tons
     part of:  #megaton.avoirdupois_unit  one million tons

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