A dog bounds across the brown grass.
The brown dog is running in the grass.
Not all dogs are brown and just because the dog is bounding across the grass doesn't mean it is running.
exists e1 s1 x1 x2.(n_grass(x2) & a_brown(s1) & Theme(s1,x2) & across(e1,x2) & Actor(e1,x1) & v_bound(e1) & n_dog(x1))
exists e1 s1 x1 x2.(n_grass(x2) & n_dog(x1) & a_brown(s1) & Theme(s1,x1) & in(e1,x2) & Actor(e1,x1) & v_run(e1))