A woman is shoeing a horse.
The woman is wearing shoes
A woman shoeing a horse is not necessarily wearing shoes.
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_shoe(e1) & n_horse(x2) & n_woman(x1))
exists e1 x1 x2.(n_woman(x1) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_shoe(x2))