Two small dogs run through the grass.
two small dogs are chasing a bird in the grass
The dogs can be running without chasing a bird.
exists e1 s1 x1 x2.(n_grass(x2) & through(e1,x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1) & a_small(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 s1 x1 x2 x3.(n_grass(x3) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_chase(e1) & n_bird(x2) & n_dog(x1) & a_small(s1) & Theme(s1,x1) & card_eq_2(x1))