t t t o-o - p-i o-o- i-u y-t y-y - t t t o-o - p-i o-o- i-u y-t r-t--- u u u r- r - u-y t- t- y-y o-i i-u - u u u r-r - u-y t-t- y-y o-o p-o--- t t t o- o - p-i o- o- i-u y-t y-y - t t t o-o - p-i o-o- i-u y-t r-t--- u u u r- r - u-y t- t- y-y o-i i-u - u u u r-r - u-y t-t- y-y o-o p-o