#gamble  a risky act or venture
  supertype:  #risk__peril__danger  a venture undertaken without regard to possible loss or injury; "he saw the rewards but not the risks of crime"; "there was a danger he would do the wrong thing"
  subtype:  #long_shot  a venture that involves great risk but promises great rewards
  subtype:  #raise  increasing the size of a bet (as in poker); "I'll see your raise and double it"
     subtype:  #doubling.raise__double  raising the stakes in a card game by a factor of 2; "I decided his double was a bluff"

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