Two brown dogs run through the grass.
Two dogs are chasing each other through the grass.
Just because dogs run through the grass it does not mean the dogs are chasing each other through the grass.
exists e1 s1 x1 x2.(n_grass(x2) & through(e1,x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1) & a_brown(s1) & Theme(s1,x1) & card_eq_2(x1))
exists x1 x3.(n_grass(x3) & all x2.(n_other(x2) -> exists e1.(through(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_chase(e1))) & n_dog(x1) & card_eq_2(x1))