#bowling_ball__bowlingball  a large ball used for bowling
  supertype:  #ball  round object that is hit or thrown or kicked in games; "the ball travelled 90 mph on his serve"; "the mayor threw out the first ball"
  part:  #finger_hole  a hole for inserting a finger
  part:  #thumbhole  a finger hole made to fit the thumb (as in a bowling ball)

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