A dog running at the shore of a lake, hill in the background.
A dog is outside chasing after a ball.
A dog running at the lake shore is not necessarily chasing after a ball.
exists e1 x1 x2 x3 x4 x5 x6.(n_background(x6) & n_shore(x3) & a_topic(x1) & at(e1,x3) & of(x3,x4) & rel(x4,x5) & in(x5,x6) & n_hill(x5) & n_lake(x4) & Actor(e1,x2) & v_run(e1) & (x1 = x2) & n_dog(x1))
exists p1 x1 x2.(after(p1,x2) & n_ball(x2) & exists s1 x3.((x1 = x3) & n_chasing(x3) & a_outside(s1) & Theme(s1,x3)) & n_dog(x1))