A woman looking through a telescope at a dinosaur.
A man sleeps.
A man is not a woman. If a person is looking at something, they can't be sleeping.
exists e1 x1 x2 x3 x4.(a_topic(x1) & at(e1,x4) & n_dinosaur(x4) & through(e1,x3) & n_telescope(x3) & Actor(e1,x2) & v_look(e1) & (x1 = x2) & n_woman(x1))
exists e1 x1.(Actor(e1,x1) & v_sleep(e1) & n_man(x1))