A brown dog running
A dog is running after the ball.
Just because the dog is running does not mean it is going after a ball.
exists e1 s1 x1 x2.(a_topic(x1) & Actor(e1,x2) & v_run(e1) & (x1 = x2) & n_dog(x1) & a_brown(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_ball(x2) & after(e1,x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1))