A dog swims toward a stick
A dog is swimming
Swims toward a stick is a form of swimming.
exists e1 x1 x2.(toward(e1,x2) & n_stick(x2) & Actor(e1,x1) & v_swim(e1) & n_dog(x1))
exists e1 x1.(Actor(e1,x1) & v_swim(e1) & n_dog(x1))