#lawn_tennis__tennis  a game played with rackets by two or four players who hit a ball back and forth over a net that divides the court
  supertype:  #court_game__courtgame  an athletic game played on a court
  part:  #footfault  #return  #rally  #service_break  #advantage.game_point  #set_point
  subtype:  #professional_tennis  playing tennis for money
  subtype:  #singles__single  tennis played with one person on each side
  subtype:  #doubles__double  tennis played with two players on each side
  subtype:  #royal_tennis__real_tennis__court_tennis  an ancient form of tennis played in a four-walled court

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