Two professional soccer players are playing with a ball on the field.
Two soccer players prepare to enter the game on the sidelines.
The soccer players could be professional or amateurs. Playing and prepare to enter are different actions. Field and sidelines are different locations.
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 e1 p1 x1 x2 x3 x4.(n_sideline(x4) & n_game(x3) & Topic(e1,p1) & Actor(e1,x1) & v_prepare(e1) & exists e2.(on(e2,x4) & Theme(e2,x3) & Actor(e2,x1) & v_enter(e2)) & n_player(x1) & of(x1,x2) & n_soccer(x2) & card_eq_2(x1))