A homeless man in an alley.
A naked person pushing a cart.
The man is either in an alley or is pushing a cart.
exists s1 x1 x2.(a_topic(x1) & in(x1,x2) & n_alley(x2) & n_man(x1) & a_homeless(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_push(e1) & n_cart(x3) & (x1 = x2) & n_person(x1) & a_naked(s1) & Theme(s1,x1))