A man holds a bird.
A man runs with the bird.
The man that holds a bird cannot be the same that runs with a bird.
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_hold(e1) & n_bird(x2) & n_man(x1))
exists e1 x1 x2.(n_bird(x2) & with(e1,x2) & Actor(e1,x1) & v_run(e1) & n_man(x1))