A dog jumps high in the snow.
A dog is sleeping.
The dog can't be sleeping if he's jumping.
exists e1 p1 x1 x2.(n_snow(x2) & in(e1,x2) & exists s1.(Theme(s1,x1) & a_high(s1)) & Topic(e1,p1) & Actor(e1,x1) & v_jump(e1) & n_dog(x1))
exists e1 x1.(Actor(e1,x1) & v_sleep(e1) & n_dog(x1))