b-u bbb bbi bbk bbo bbq bbu bi- bib bii bik bio biu bkb bkk bko bkq bob boi bok boo boq bou bub bui buk buo buu ibb ibi ibk ibo ibu iib iii iio iiu ikb iki ikk iko iku io- iob ioi ioo iou iqu iu- iub iui kbb kbi kbk kbo kbu kib kii kik kio kiu kkb kki kkk kku kob koi kok koo kou kub kui kuk kuu o-i ob- obb obi obk obo obu oib oii oik oio oiu okb oki okk oko oku oo- oob ooi ook ooo oqb oqo ou- oui ouk ouo qbq qik qio qiu qki qoi qoo qqk qqq qqu qu- qui quo ubb ubi ubk ubo ubu uib uii uio uiq uiu ukb uki ukk uku uob uok uoo uuu