a dog runs through the snow.
the dog is walking backwards
A dog running could possibly not be walking backwards too. totally contradictory.
exists e1 x1 x2.(n_snow(x2) & through(e1,x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1))
exists e1 x1 x2.(n_dog(x1) & Theme(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_backward(x2))