A photographer looking through the lens.
There is a photographer.
If there is a photographer looking through a lens then the photographer has a camera
exists e1 x1 x2 x3.(n_lens(x3) & a_topic(x1) & through(e1,x3) & Actor(e1,x2) & v_look(e1) & (x1 = x2) & n_photographer(x1))
exists p1 x1 x2.((x1 = x2) & n_photographer(x2))