A man without a shirt is sitting in a black chair on a crowded sidewalk.
The man is sitting topless in a black chair to suntan.
Without a shirt does not necessarily mean to suntan.
exists e1 s1 s2 x1 x2 x3.(on(e1,x3) & n_sidewalk(x3) & a_crowded(s2) & Theme(s2,x3) & in(e1,x2) & n_chair(x2) & a_black(s1) & Theme(s1,x2) & Actor(e1,x1) & v_sit(e1) & -exists x4.(with(x1,x4) & n_shirt(x4)) & n_man(x1))
exists e1 p1 s1 x1 x2 x3.(n_man(x1) & to(e1,x3) & n_suntan(x3) & in(e1,x2) & n_chair(x2) & a_black(s1) & Theme(s1,x2) & exists s2.(Theme(s2,x1) & a_topless(s2)) & Topic(e1,p1) & Actor(e1,x1) & v_sit(e1))