b-u bbb bbi bbk bbo bbq bbs bbu bi- bib bii bik bio bis biu biz bkb bkk bko bkq bks bob boi bok boo boq bos bou boz bsb bsi bsk bso bss bsu bub bui buk buo bus buu buz bzo bzs bzu bzz ibb ibi ibk ibo ibs ibu ibz iib iii iio iis iiu ikb iki ikk iko iks iku io- iob ioi ioo ios iou iqs iqu is- isb isi isk iso isq iss isu iu- iub iui ius iuz izi izo izu izz k-z kbb kbi kbk kbo kbs kbu kbz kib kii kik kio kis kiu kiz kkb kki kkk kks kku kob koi kok koo kos kou koz ksb ksi ksk kso kss ksu kub kui kuk kus kuu kzo o-i ob- obb obi obk obo obs obu oib oii oik oio ois oiu oiz okb oki okk oko oks oku oo- oob ooi ook ooo oos oqb oqo os- osb osi osk oso osq oss osu ou- oui ouk ouo ous ozo ozs ozu ozz qbq qbs qik qio qis qiu qiz qki qoi qoo qos qqk qqq qqu qsi qso qu- qui quo qus sbb sbi sbk sbo sbq sbs sbu sib sii sik sio siq sis siu sk- skb ski skk sko skq sks sku sob soi sok soo soq sos sou soz sqi sqq sqs ss- ssb ssi ssk sso ssq sss ssu ssz sub sui suk suo suq sus suu suz szi szu ubb ubi ubk ubo ubs ubu uib uii uio uiq uis uiu ukb uki ukk uku ukz uob uok uoo uos usb usi usk uso uss usu usz uus uuu uzb uzi uzo uzu zbb zbs zib zik zio zis ziz zks zo- zob zoi zok zoo zos zou zsi zsu zsz zub zui zuk zus zuz zzs zzz