Two boys are playing ping-pong.
A couple of kids play a game with balls and a paddle.
A couple of kids is restating that there are two boys. Play a game with balls and a paddle is restating that they are playing ping-pong.
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_ping-pong(x2) & n_boy(x1) & card_eq_2(x1))
exists e1 x1 x2 x3 x4 x5 x6.(Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & subset_of(x6,x3) & n_paddle(x6) & subset_of(x4,x3) & with(x4,x5) & n_ball(x5) & n_game(x4) & of(x1,x2) & n_kid(x2) & n_couple(x1))