#game_of_chance__gambling_game  a game that involves gambling
  supertype:  #gambling  #game.activity
  subtype:  #fantan  a Chinese gambling game; a random number of counters are placed under a bowl and you gamble on how many will be left (0 or 1 or 2 or 3) modulo 4
  subtype:  #lottery.game_of_chance__drawing  players buy chances and prizes are distributed according to the drawing of lots
     subtype:  #tombola  (British) a lottery in which tickets are drawn from a revolving drum
     subtype:  #numbers_pool__numberspool__numbers_game__numbersgame__numbers_racket__numbersracket__numbers__number  an illegal daily lottery
     subtype:  #raffle  a lottery in which the prizes are goods rather than money
     subtype:  #sweepstake__sweepstakes__sweepstake  a lottery in which the prize consists of the money paid by the participants
  subtype:  #crap_shooting__craps__crap__crap_game  a gambling game using two dice
  subtype:  #roulette  a gambling game in which players bet on which compartment of a revolving wheel a small ball will come to rest in
  subtype:  #banking_game__bankinggame  any gambling game in which bets are laid against the gambling house or the dealer

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