A woman is looking through a microscope.
A woman looking through a telescope.
The woman cannot be looking through a telescope and a microscope at the same time.
exists e1 x1 x2.(through(e1,x2) & n_microscope(x2) & Actor(e1,x1) & v_look(e1) & n_woman(x1))
exists e1 x1 x2 x3.(a_topic(x1) & through(e1,x3) & n_telescope(x3) & Actor(e1,x2) & v_look(e1) & (x1 = x2) & n_woman(x1))