A sign on a store in and urban neighborhood.
A sign hangs on the side of a downtown store.
in both sentences, there is a sign on a store. urban neighborhood implies downtown.
exists s1 x1 x2 x3.(a_topic(x1) & on(x1,x2) & in(x2,x3) & n_neighborhood(x3) & a_urban(s1) & Theme(s1,x3) & n_store(x2) & n_sign(x1))
exists e1 x1 x2 x3 x4.(n_side(x2) & on(e1,x2) & of(x2,x3) & n_store(x3) & of(x3,x4) & n_downtown(x4) & Actor(e1,x1) & v_hang(e1) & n_sign(x1))