A shirtless man with a backpack.
The man is hiking with his backpack.
Not all men with backpacks are hiking.
exists s1 x1 x2.(a_topic(x1) & with(x1,x2) & n_backpack(x2) & n_man(x1) & a_shirtless(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_backpack(x2) & of(x2,x1) & n_male(x1) & n_man(x1) & with(e1,x2) & Actor(e1,x1) & v_hike(e1))