Two men play a game of ping-pong.
Two woman throwing ping-pong balls at each other.
its either men or women.
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & of(x2,x3) & n_ping-pong(x3) & n_game(x2) & n_man(x1) & card_eq_2(x1))
exists e1 s1 x1 x2 x3.(a_topic(x1) & all x4.(n_other(x4) -> at(e1,x4)) & Theme(e1,x3) & Actor(e1,x2) & v_throw(e1) & n_ball(x3) & a_ping-pong(s1) & Theme(s1,x3) & (x1 = x2) & n_woman(x1) & card_eq_2(x1))