Two children play soccer on green grass.
There is green grass.
green grass almost the same as green grass
exists e1 s1 x1 x2 x3.(on(e1,x3) & n_grass(x3) & a_green(s1) & Theme(s1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_soccer(x2) & n_child(x1) & card_eq_2(x1))
exists p1 x1 s1 x2.((x1 = x2) & n_grass(x2) & a_green(s1) & Theme(s1,x2))