A man in a green shirt is on the computer in a small room.
A man on a computer.
Both subjects are on the computer
exists p1 s1 x1 x2 x3.(n_computer(x3) & exists s2 x4.(on(x1,x3) & in(x3,x4) & n_room(x4) & a_small(s2) & Theme(s2,x4)) & in(x1,x2) & n_shirt(x2) & a_green(s1) & Theme(s1,x2) & n_man(x1))
exists x1 x2.(a_topic(x1) & on(x1,x2) & n_computer(x2) & n_man(x1))