A homeless man being observed by a man in business attire.
The homeless man is all alone, with no one else in sight.
If a person is all alone, then they are not being observed.
exists e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & in(e1,x4) & n_attire(x4) & of(x4,x5) & n_business(x5) & Actor(e1,x3) & n_man(x3) & Theme(e1,x2) & v_observe(e1) & (x1 = x2) & n_man(x1) & a_homeless(s1) & Theme(s1,x1))
exists s1 s2 x1.(n_man(x1) & a_homeless(s1) & Theme(s1,x1) & -exists s3 x2 x3.(with(s2,x2) & in(x2,x3) & n_sight(x3) & n_thing(x2) & card_eq_1(x2) & a_else(s3) & Theme(s3,x2)) & r_all(s2) & Theme(s2,x1) & a_alone(s2))