A dog lies on his back on a road.
a dog lies down
on his back on a road implies down
exists e1 x1 x2 x3.(on(e1,x3) & n_road(x3) & on(e1,x2) & n_back(x2) & of(x2,x1) & n_male(x1) & Actor(e1,x1) & v_lie(e1) & n_dog(x1))
exists e1 s1 x1.(a_down(s1) & Manner(e1,s1) & Actor(e1,x1) & v_lie(e1) & n_dog(x1))