A man gliding in the sky with the sunset on the horizon in the background.
A man is flying an airplane.
If one is gliding in the sky, they are not flying an airplane.
exists e1 x1 x2 x3 x4 x5 x6.(n_sky(x6) & n_background(x5) & n_horizon(x4) & n_sunset(x3) & a_topic(x1) & in(e1,x6) & with(e1,x3) & on(x3,x4) & in(x4,x5) & Actor(e1,x2) & v_glide(e1) & (x1 = x2) & n_man(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_fly(e1) & n_airplane(x2) & n_man(x1))