The white dog ran down the dusty road.
A dog is running.
A dog can only be running if it ran.
exists e1 s1 s2 x1 x2.(n_road(x2) & a_dusty(s2) & Theme(s2,x2) & n_dog(x1) & a_white(s1) & Theme(s1,x1) & down(e1,x2) & Actor(e1,x1) & v_run(e1))
exists e1 x1.(Actor(e1,x1) & v_run(e1) & n_dog(x1))