two teams playing soccer on grass
People playing soccer.
If people are playing soccer it can be assumed that they are in two teams.
exists e1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x4) & n_grass(x4) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_soccer(x3) & (x1 = x2) & n_team(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_soccer(x3) & (x1 = x2) & n_people(x1))