a-a a-b a-c aaa aab aac aah aak aam aao aau ab- aba abb abc abh abk abm abo abu ac- aca acb acc ach ack acm aco acu aha ahb ahc ahh ahk ahm aho ahu aka akb akc akh akk akm ako aku ama amb amc amh amk amm amo amu aoa aob aoc aoh aok aom aoo aou au- aua aub auc auh auk aum auo b-u baa bab bac bah bak bam bao bau bba bbb bbc bbh bbk bbm bbo bbu bca bcb bcc bch bck bcm bco bcu bha bhb bhc bhh bhk bhm bho bhu bka bkb bkc bkk bkm bko bma bmb bmc bmh bmk bmm bmo bmu boa bob boc boh bok bom boo bou bua bub buc buh buk bum buo buu c-- caa cab cac cah cak cam cao cau cba cbb cbc cbh cbk cbm cbo cbu cca ccb ccc cch cck ccm cco ccu ch- cha chb chc chh chk chm cho chu cka ckb ckc ckh ckm cko cma cmb cmc cmh cmk cmm cmo cmu co- coa cob coc coh cok com coo cou cua cub cuc cuh cuk cum cuo cuu haa hab hac hah hak ham hao hau hba hbb hbc hbh hbk hbm hbo hbu hca hcb hcc hch hck hcm hco hha hhb hhc hhh hhk hhm hho hhu hka hkb hkh hkk hkm hko hku hma hmb hmc hmh hmk hmm hmo hmu hoa hob hoc hoh hok hom hoo hou hua hub huc huh huk hum huo huu ka- kaa kab kac kah kak kam kao kau kba kbb kbc kbh kbk kbm kbo kbu kca kcb kcc kch kck kcm kcu kha khh khk khm kho khu kkb kkc kkh kkk kkm kku kma kmb kmc kmh kmk kmm kmo kmu koa kob koc koh kok kom koo kou kub kuc kuh kuk kum kuu m-o maa mab mac mah mak mam mao mau mba mbb mbc mbh mbk mbm mbo mbu mc- mca mcb mcc mch mck mcm mco mcu mha mhc mhh mhk mhm mho mhu mka mkb mkc mkh mkk mkm mko mku mma mmb mmc mmh mmk mmm mmo mmu moa mob moc moh mok mom moo mou mua mub muc muh muk mum muu oaa oab oac oah oak oam oao oau ob- oba obb obc obh obk obm obo obu oc- oca ocb occ och ock ocm oco ocu oha ohc ohh ohm oho ohu oka okb okc okk oko oku om- oma omb omc omh omm omo omu oo- ooa oob ooc ooh ook oom ooo ou- oua ouc ouh ouk oum ouo ua- uaa uab uac uah uak uam uao uau uba ubb ubc ubh ubk ubo ubu uca ucb ucc uch uck ucm uco ucu uha uhb uhc uhh uhm uho uhu uka ukb ukc ukk uku um- uma umb umc umh umm umo umu uoa uob uoc uok uom uoo uua uuc uum uuu