A man in a tuxedo is pointing to a picture on a screen.
The man is at a wedding.
Not all men in tuxedos are at a wedding.
exists e1 x1 x2 x3 x4.(to(e1,x3) & on(x3,x4) & n_screen(x4) & n_picture(x3) & Actor(e1,x1) & v_point(e1) & in(x1,x2) & n_tuxedo(x2) & n_man(x1))
exists p1 x1.(n_man(x1) & exists x2.(at(x1,x2) & n_wedding(x2)))