A woman is swinging on a rope.
A woman is on the rope
She is swinging; not just on the rope.
exists e1 x1 x2.(on(e1,x2) & n_rope(x2) & Actor(e1,x1) & v_swing(e1) & n_woman(x1))
exists p1 x1 x2.(n_rope(x2) & on(x1,x2) & n_woman(x1))