o-u u y-u u o-u-y-u- y-o o u u y- o-u-y-u- y-i-u-t- u-i-u y t- y--u---- o- u u y-t t o-u-y-u- y-o o u u y- o-u-y-u- y-i-u-t- u-i-u y t- y--u---- p- s-d-s- p-s-d-s- o-s s d d s- d-d f d-s- p s s p d-o o p s p-s p s d- f d-d-s s f s s-d s s d f-d f f-d f f d f g f d s- f-d f f-d f f d f-d-s- g - f - p- p-s s s p o- g - f - i- i-i i i-u u u---- f-d f f-d f f d f g f d s- f-d f f-d f f d f-d-s- g - f - p- p-s s s p o- g - f - i- i-o