b-u bbb bbh bbi bbk bbo bbu bhb bhh bhi bhk bho bhu bhv bi- bib bih bii bik bio biu biv bkb bkk bko bkv bob boh boi bok boo bou bov bub buh bui buk buo buu bvb bvh bvi bvk bvo bvu bvv h-i hbb hbh hbi hbk hbo hbu hbv hhb hhh hhi hhk hho hhu hhv hib hih hii hik hio hiu hiv hkb hkh hki hkk hko hku hob hoh hoi hok hoo hou hov hub huh hui huk huo huu huv hv- hvb hvk hvo hvv i-v ibb ibh ibi ibk ibo ibu ibv ihb ihh ihi ihk iho ihu ihv iib iih iii iio iiu ikb iki ikk iko iku ikv io- iob ioh ioi ioo iou iov iu- iub iui ivb ivi ivo ivu ivv kbb kbh kbi kbk kbo kbu khh khi khk kho khu khv kib kih kii kik kio kiu kiv kkb kkh kki kkk kku kkv kob koh koi kok koo kou kub kuh kui kuk kuu kvb kvh kvi kvk kvo kvv o-i ob- obb obh obi obk obo obu obv ohh ohi oho ohu oib oii oik oio oiu oiv okb oki okk oko oku oo- oob ooh ooi ook ooo oov ou- ouh oui ouk ouo ov- ovb ovh ovi ovo ovv ubb ubh ubi ubk ubo ubu ubv uhb uhh uhi uho uhu uhv uib uii uio uiu ukb uki ukk uku uob uok uoo uuu uvb uvo uvu uvv vbh vbi vbk vbo vbv vh- vhb vhi vho vi- vib vii vik vio viu viv vkb vob voh voi vok voo vou vov vuk vuv vvb vvi vvo vvv