f - f g f h - f-f f - f g d s - o - j-k l k j h - f-s d-f g f h f - d - f - f g d h - f-f f - f g d s - o - j-k l k j h - f-s d-f g f d s - s-h d-f g f d f - h-f d-f g f d s - s-h d-f g f d f - h f s a d h s a p o - o - f - f g d h - f-f f - f g d s - o - j-k l k j h - f-s d-f g f d s - s-l k-l z l k l-x l-x k-l z l k l-x l-x l f d s s s s - s