Two teams play soccer on a grass field.
The two soccer teams are on a grass field.
Both subjects are on a grass field
exists e1 x1 x2 x3 x4.(on(e1,x3) & n_field(x3) & of(x3,x4) & n_grass(x4) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_soccer(x2) & n_team(x1) & card_eq_2(x1))
exists p1 x1 x2.(n_team(x1) & of(x1,x2) & n_soccer(x2) & card_eq_2(x1) & exists x3 x4.(on(x1,x3) & n_field(x3) & of(x3,x4) & n_grass(x4)))