Two dogs run through a field.
Two dogs are in a grass covered field.
This field that the dogs run through may not be a grass covered field.
exists e1 x1 x2.(through(e1,x2) & n_field(x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1) & card_eq_2(x1))
exists p1 x1.(exists e1 x2 x3.(in(x1,x2) & n_field(x2) & Theme(e1,x2) & v_cover(e1) & of(x2,x3) & n_grass(x3)) & n_dog(x1) & card_eq_2(x1))