a-a a-b aaa aab aah aak aar aas aay ab- aba abb abh abk abr abs aby aha ahb ahh ahk ahr ahs ahy aka akb akh akk akr aks ar- ara arb arh ark arr ars ary as- asa asb ash ask asr ass asy ay- aya ayh ayk ayr ays baa bab bah bak bar bas bay bba bbb bbh bbk bbr bbs bby bha bhb bhh bhk bhr bhs bka bkb bkk bkr bks bra brb brh brk brr brs bry bsa bsb bsh bsk bsr bss bsy by- bya byh byk byr bys haa hab hah hak har has hay hba hbb hbh hbk hbr hbs hby hha hhb hhh hhk hhr hhs hhy hka hkb hkh hkk hkr hks hr- hra hrb hrh hrk hrr hrs hsa hsb hsh hsk hsr hss hsy hy- hya hyb hyh hyr hys hyy ka- kaa kab kah kak kar kas kay kba kbb kbh kbk kbr kbs kha khh khk khr khs kkb kkh kkk kkr kks kky kra krk krr krs kry ksa ksb ksh ksk ksr kss kya kyr kys ra- raa rab rah rak rar ras ray rba rbb rbh rbk rbr rbs rh- rha rhb rhh rhr rhs rkb rkk rks rky rra rrb rrh rrk rrr rrs rsa rsb rsh rsk rsr rss ry- rya ryk ryr rys ryy saa sab sah sak sar sas say sba sbb sbh sbk sbr sbs sby sh- sha shb shh shk shr shs shy sk- ska skb skh skk skr sks sky sr- sra srb srh srk srr srs sry ss- ssa ssb ssh ssk ssr sss sy- sya syb syh syk syr sys yaa yab yah yak yar yas yay ybr ybs yby yha yhs yka ykk yra yrs ysa ysb ysk ysr yss ysy yyb yys yyy