a-a a-b a-i aaa aab aah aai aak aao aap ab- aba abb abh abi abk abo abp aha ahb ahh ahi ahk aho ahp ai- aia aib aih aii aik aio aip aka akb akh aki akk ako akp aoa aob aoh aoi aok aoo aop ap- apa apb aph api apk apo app b-p baa bab bah bai bak bao bap bba bbb bbh bbi bbk bbo bbp bha bhb bhh bhi bhk bho bhp bi- bia bib bih bii bik bio bip bka bkb bkk bko bkp boa bob boh boi bok boo bop bpa bpb bph bpi bpo bpp h-i haa hab hah hai hak hao hap hba hbb hbh hbi hbk hbo hbp hha hhb hhh hhi hhk hho hhp hia hib hih hii hik hio hip hka hkb hkh hki hkk hko hkp hoa hob hoh hoi hok hoo hop hpa hpb hph hpi hpk hpo hpp ia- iaa iab iah iai iao iap iba ibb ibh ibi ibk ibo ibp iha ihb ihh ihi ihk iho ihp iia iib iih iii iio iip ika ikb iki ikk iko io- ioa iob ioh ioi ioo iop ipa ipb ipi ipo ipp ka- kaa kab kah kai kak kao kap kba kbb kbh kbi kbk kbo kbp kha khh khi khk kho kia kib kih kii kik kio kip kkb kkh kki kkk kkp koa kob koh koi kok koo kop kpa kph kpi kpk kpo kpp o-i oaa oab oah oai oak oao oap ob- oba obb obh obi obk obo obp oha ohh ohi oho ohp oia oib oii oik oio oip oka okb oki okk oko okp oo- ooa oob ooh ooi ook ooo oop op- opa opb oph opi opk opo opp p-p paa pab pah pai pak pao pap pba pbb pbi pbk pbo pbp pha phb phi phk pho php pia pib pih pii pik pio pip pka pkb pki pko pkp poa pob poh poi pok poo pop ppa ppb pph ppi ppk ppo ppp