A dog is jumping down the stairs.
A dog is jumping.
If we know that the dog is jumping down the stairs then it follows that the dog would be jumping.
exists e1 s1 x1 x2.(n_stair(x2) & a_down(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_jump(e1) & n_dog(x1))
exists e1 x1.(Actor(e1,x1) & v_jump(e1) & n_dog(x1))