Two professional soccer players are playing with a ball on the field.
Two soccer players with a ball.
the players are professional
exists e1 s1 x1 x2 x3 x4.(n_field(x4) & with(e1,x3) & on(x3,x4) & n_ball(x3) & Actor(e1,x1) & v_play(e1) & n_player(x1) & of(x1,x2) & n_soccer(x2) & a_professional(s1) & Theme(s1,x1) & card_eq_2(x1))
exists x1 x2 x3.(a_topic(x1) & with(x1,x3) & n_ball(x3) & n_player(x1) & of(x1,x2) & n_soccer(x2) & card_eq_2(x1))