A shirtless man with a backpack.
The man is outside.
A shirtless man with a backpack doesn't necessarily have to be outside.
exists s1 x1 x2.(a_topic(x1) & with(x1,x2) & n_backpack(x2) & n_man(x1) & a_shirtless(s1) & Theme(s1,x1))
exists s1 x1.(n_man(x1) & Theme(s1,x1) & a_outside(s1))