a-a a-b aaa aab aah aak aam aao ab- aba abb abh abk abm abo aha ahb ahh ahk ahm aho aka akb akh akk akm ako ama amb amh amk amm amo aoa aob aoh aok aom aoo baa bab bah bak bam bao bba bbb bbh bbk bbm bbo bha bhb bhh bhk bhm bho bka bkb bkk bkm bko bma bmb bmh bmk bmm bmo boa bob boh bok bom boo haa hab hah hak ham hao hba hbb hbh hbk hbm hbo hha hhb hhh hhk hhm hho hka hkb hkh hkk hkm hko hma hmb hmh hmk hmm hmo hoa hob hoh hok hom hoo ka- kaa kab kah kak kam kao kba kbb kbh kbk kbm kbo kha khh khk khm kho kkb kkh kkk kkm kma kmb kmh kmk kmm kmo koa kob koh kok kom koo m-o maa mab mah mak mam mao mba mbb mbh mbk mbm mbo mha mhh mhk mhm mho mka mkb mkh mkk mkm mko mma mmb mmh mmk mmm mmo moa mob moh mok mom moo oaa oab oah oak oam oao ob- oba obb obh obk obm obo oha ohh ohm oho oka okb okk oko om- oma omb omh omm omo oo- ooa oob ooh ook oom ooo