This man is asleep on a bench.
Homeless man lies in the park.
Man asleep on a bench does not necessarily be homeless man and bench need not be always in the park.
exists s1 x1 x2.(n_man(x1) & on(s1,x2) & n_bench(x2) & Theme(s1,x1) & a_asleep(s1))
exists e1 s1 x1 x2.(n_park(x2) & in(e1,x2) & Actor(e1,x1) & v_lie(e1) & n_man(x1) & a_homeless(s1) & Theme(s1,x1))