#pony  a range horse of the western United States
  supertype:  horse__Equus_caballus  solid-hoofed herbivorous quadruped domesticated since prehistoric times
  subtype:  mustang  small hardy range horse of the western plains descended from horses brought by the Spanish
     subtype:  bronco__bronc__broncho  an unbroken or imperfectly broken mustang
        subtype:  bucking_bronco__buckingbronco  a vicious or unbreakable bronco
  subtype:  cayuse__Indian_pony  a small native range horse

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