A dog is running down a road.
A dog runs from the police.
You didn't know what the dog was running from the police just by looking at the first sentence.
exists e1 s1 x1 x2.(a_down(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_run(e1) & n_road(x2) & n_dog(x1))
exists e1 x1 x2.(n_police(x2) & from(e1,x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1))