a-a a-b aaa aab aah aak aao aar aas aav aay ab- aba abb abh abk abo abr abs abv aby aha ahb ahh ahk aho ahr ahs ahv ahy aka akb akh akk ako akr aks akv aoa aob aoh aok aoo aor aos aov ar- ara arb arh ark aro arr ars arv ary as- asa asb ash ask aso asr ass asv asy av- ava avb avh avk avo avr avs avy ay- aya ayh ayk ayo ayr ays baa bab bah bak bao bar bas bav bay bba bbb bbh bbk bbo bbr bbs bby bha bhb bhh bhk bho bhr bhs bhv bka bkb bkk bko bkr bks bkv boa bob boh bok boo bor bos bov boy bra brb brh brk bro brr brs brv bry bsa bsb bsh bsk bso bsr bss bsv bsy bva bvb bvh bvk bvo bvr bvs bvv by- bya byh byk byo byr bys haa hab hah hak hao har has hav hay hba hbb hbh hbk hbo hbr hbs hbv hby hha hhb hhh hhk hho hhr hhs hhv hhy hka hkb hkh hkk hko hkr hks hoa hob hoh hok hoo hor hos hov hoy hr- hra hrb hrh hrk hro hrr hrs hrv hsa hsb hsh hsk hsr hss hsv hsy hv- hva hvb hvk hvo hvr hvs hvv hvy hy- hya hyb hyh hyo hyr hys hyv hyy ka- kaa kab kah kak kao kar kas kav kay kba kbb kbh kbk kbo kbr kbs kha khh khk kho khr khs khv kkb kkh kkk kkr kks kkv kky koa kob koh kok koo kor kos koy kra krk kro krr krs krv kry ksa ksb ksh ksk kso ksr kss ksv kva kvb kvh kvk kvo kvr kvs kvv kya kyo kyr kys oaa oab oah oak oao oar oas oav ob- oba obb obh obk obo obr obs obv oby oha ohh oho ohr ohs oka okb okk oko okr oks oo- ooa oob ooh ook ooo oor oos oov or- ora orb orh ork oro orr ors orv ory os- osa osb osh osk oso osr oss osv ov- ova ovb ovh ovo ovs ovv oya oyo oys ra- raa rab rah rak rao rar ras rav ray rba rbb rbh rbk rbo rbr rbs rh- rha rhb rhh rho rhr rhs rhv rkb rkk rko rks rkv rky roa rob roh rok roo ror ros rov roy rra rrb rrh rrk rrr rrs rsa rsb rsh rsk rso rsr rss rsv rva rvb rvh rvo rvr rvs rvv rvy ry- rya ryk ryo ryr rys ryy saa sab sah sak sao sar sas sav say sba sbb sbh sbk sbo sbr sbs sbv sby sh- sha shb shh shk sho shr shs shv shy sk- ska skb skh skk sko skr sks sky soa sob soh sok soo sor sos sov soy sr- sra srb srh srk sro srr srs srv sry ss- ssa ssb ssh ssk sso ssr sss ssv sva svb svk svo svr svs svv svy sy- sya syb syh syk syr sys v-a vaa vab vah vak vao var vas vav vay vba vbh vbk vbo vbr vbs vbv vh- vha vhb vho vhs vka vkb voa vob voh vok voo vor vos vov voy vra vrb vrh vrk vrr vrs vry vsa vsb vsh vsk vso vsr vss vsv vva vvb vvo vvr vvs vvv yaa yab yah yak yao yar yas yav yay ybr ybs yby yha yhs yka ykk yob yok yoo yor yos yoy yra yro yrs ysa ysb ysk yso ysr yss ysy yva yvo yvr yvy yyb yys yyy