#biped  an animal with two feet
  supertype:  #animal__animate_being__animatebeing__beast__brute__creature__fauna  a living organism characterized by voluntary movement
  part:  #animal_leg  the leg of an animal
     part:  #cannon.body_part__shank  lower part of the leg extending from the hock to the fetlock in hoofed mammals
        part:  #cannon_bone  greatly developed metatarsal or metacarpal bone in the shank or cannon part of the leg in hoofed mammals

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