a-a a-b a-i aaa aab aah aai aak aao aap aar ab- aba abb abh abi abk abo abp abr aha ahb ahh ahi ahk aho ahp ahr ai- aia aib aih aii aik aio aip air aka akb akh aki akk ako akp akr aoa aob aoh aoi aok aoo aop aor ap- apa apb aph api apk apo app apr ar- ara arb arh ari ark aro arp arr b-p baa bab bah bai bak bao bap bar bba bbb bbh bbi bbk bbo bbp bbr bha bhb bhh bhi bhk bho bhp bhr bi- bia bib bih bii bik bio bip bir bka bkb bkk bko bkp bkr boa bob boh boi bok boo bop bor bpa bpb bph bpi bpo bpp bpr bra brb brh bri brk bro brp brr h-i haa hab hah hai hak hao hap har hba hbb hbh hbi hbk hbo hbp hbr hha hhb hhh hhi hhk hho hhp hhr hia hib hih hii hik hio hip hir hka hkb hkh hki hkk hko hkp hkr hoa hob hoh hoi hok hoo hop hor hpa hpb hph hpi hpk hpo hpp hpr hr- hra hrb hrh hri hrk hro hrp hrr ia- iaa iab iah iai iao iap iar iba ibb ibh ibi ibk ibo ibp ibr iha ihb ihh ihi ihk iho ihp ihr iia iib iih iii iio iip iir ika ikb iki ikk iko ikr io- ioa iob ioh ioi ioo iop ior ipa ipb ipi ipo ipp ipr ir- ira irb iri irk iro irp irr ka- kaa kab kah kai kak kao kap kar kba kbb kbh kbi kbk kbo kbp kbr kha khh khi khk kho khr kia kib kih kii kik kio kip kir kkb kkh kki kkk kkp kkr koa kob koh koi kok koo kop kor kpa kph kpi kpk kpo kpp kpr kra kri krk kro krp krr o-i oaa oab oah oai oak oao oap oar ob- oba obb obh obi obk obo obp obr oha ohh ohi oho ohp ohr oia oib oii oik oio oip oir oka okb oki okk oko okp okr oo- ooa oob ooh ooi ook ooo oop oor op- opa opb oph opi opk opo opp opr or- ora orb orh ori ork oro orp orr p-p paa pab pah pai pak pao pap par pba pbb pbi pbk pbo pbp pbr pha phb phi phk pho php phr pia pib pih pii pik pio pip pir pka pkb pki pko pkp pkr poa pob poh poi pok poo pop por ppa ppb pph ppi ppk ppo ppp ppr pra prb prh pri prk pro prp prr ra- raa rab rah rai rak rao rap rar rba rbb rbh rbi rbk rbo rbp rbr rh- rha rhb rhh rhi rho rhp rhr ria rib rih rii rik rio rip rir rkb rkk rko rkp roa rob roh roi rok roo rop ror rpa rpb rph rpi rpk rpo rpp rpr rra rrb rrh rri rrk rrp rrr