A postal worker smiles, with a brick street background.
A mailman smiles on the street.
Just because it's a postal worker doesn't mean it's a mailman.
exists e1 s1 x1 x2 x3 x4.(with(e1,x2) & n_background(x2) & of(x2,x4) & n_street(x4) & of(x2,x3) & n_brick(x3) & Actor(e1,x1) & v_smile(e1) & n_worker(x1) & a_postal(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_street(x2) & on(e1,x2) & Actor(e1,x1) & v_smile(e1) & n_mailman(x1))