A man with a camera snaps a photo in a railroad yard while others look on.
The photo is of a train.
Just because a man takes a photo in a railroad yard doesn't mean it was a photo of a train.
exists e1 p1 x1 x2 x3 x4 x5.(exists e2 p2 x6.(exists s1.(Theme(s1,x6) & a_on(s1)) & Topic(e2,p2) & Actor(e2,x6) & v_look(e2) & -(x6 = x1) & n_person(x6)) & n_person(x1) & while(e1,p1) & Theme(e1,x3) & Actor(e1,x1) & v_snap(e1) & in(x3,x4) & n_yard(x4) & of(x4,x5) & n_railroad(x5) & n_photo(x3) & with(x1,x2) & n_camera(x2) & n_man(x1))
exists p1 x1.(n_photo(x1) & exists x2.(of(x1,x2) & n_train(x2)))