A dog playing with a ball.
A dog outside
A dog playing outside with ball
exists x1 x2 x3.(a_topic(x1) & with(x1,x3) & n_ball(x3) & n_playing(x1) & of(x1,x2) & n_dog(x2))
exists x1 x2.(a_topic(x1) & n_outside(x1) & of(x1,x2) & n_dog(x2))