A man sleeps on the grass in a park.
A homeless man is taking a nap.
We don't know that the man is homeless.
exists e1 x1 x2 x3.(n_grass(x2) & in(e1,x3) & n_park(x3) & on(e1,x2) & Actor(e1,x1) & v_sleep(e1) & n_man(x1))
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_nap(x2) & n_man(x1) & a_homeless(s1) & Theme(s1,x1))