t-s s a s d s a s - t-s s a s p s o i o p t-s s a s d s a s-o f - f d f f g d a p o t-s s a s d s a s - t-s s a s p s o i o p t-s s a s d s a s-o f - f d f f g d a p o h - h g f g f d f-o h - h g f d f g f d s h - h g f g f d f - o s s s a s d f s a p o h - h g f g f d f-o h - h g f d f g f d s h - h g f g f d f - o s s s a s d f s a p o