A man on top of a brown roof.
The man is outside on the roof.
The man is outside on the roof refers to a man on brown roof
exists s1 x1 x2 x3.(a_topic(x1) & on(x1,x2) & of(x2,x3) & n_roof(x3) & a_brown(s1) & Theme(s1,x3) & n_top(x2) & n_man(x1))
exists s1 x1 x2.(n_roof(x2) & n_man(x1) & on(s1,x2) & Theme(s1,x1) & a_outside(s1))