Three hockey players are engaged in a game.
Three tennis players are engaged in a match.
Tennis is not hockey.
exists e1 x1 x2 x3.(in(e1,x3) & n_game(x3) & Theme(e1,x1) & v_engage(e1) & n_player(x1) & of(x1,x2) & n_hockey(x2) & card_eq_3(x1))
exists e1 x1 x2 x3.(in(e1,x3) & n_match(x3) & Theme(e1,x1) & v_engage(e1) & n_player(x1) & of(x1,x2) & n_tennis(x2) & card_eq_3(x1))