A man is sleeping on the sidewalk, on top of a box.
The man is homeless.
the man sleeping on the sidewalk need not be homeless.
exists e1 x1 x2 x3 x4.(n_sidewalk(x2) & on(e1,x3) & of(x3,x4) & n_box(x4) & n_top(x3) & on(e1,x2) & Actor(e1,x1) & v_sleep(e1) & n_man(x1))
exists s1 x1.(n_man(x1) & Theme(s1,x1) & a_homeless(s1))