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