a-a a-b aaa aab aag aah aar aas aay ab- aba abb abg abh abr abs aby ag- aga agb agg agh agr ags agy aha ahb ahg ahh ahr ahs ahy ar- ara arb arg arh arr ars ary as- asa asb asg ash asr ass asy ay- aya ayh ayr ays baa bab bag bah bar bas bay bba bbb bbg bbh bbr bbs bby bga bgb bgg bgh bgr bgs bha bhb bhg bhh bhr bhs bra brb brg brh brr brs bry bsa bsb bsg bsh bsr bss bsy by- bya byg byh byr bys gaa gab gag gah gar gas gay gba gbg gbh gbr gbs gby gga ggb ggg ggh ggr ggs gha ghb ghg ghh ghr ghs gra grb grg grh grr grs gry gsa gsb gsg gsr gss gy- gya gyb gyr gys haa hab hag hah har has hay hba hbb hbg hbh hbr hbs hby hga hgb hgg hgh hgr hgs hgy hha hhb hhg hhh hhr hhs hhy hr- hra hrb hrg hrh hrr hrs hsa hsb hsg hsh hsr hss hsy hy- hya hyb hyg hyh hyr hys hyy ra- raa rab rag rah rar ras ray rba rbb rbg rbh rbr rbs rga rgb rgg rgh rgr rgs rh- rha rhb rhg rhh rhr rhs rra rrb rrg rrh rrr rrs rsa rsb rsg rsh rsr rss ry- rya ryg ryr rys ryy saa sab sag sah sar sas say sba sbb sbg sbh sbr sbs sby sga sgb sgg sgh sgr sgs sh- sha shb shg shh shr shs shy sr- sra srb srg srh srr srs sry ss- ssa ssb ssg ssh ssr sss sy- sya syb syg syh syr sys yaa yab yag yah yar yas yay ybg ybr ybs yby yga yha yhs yra yrg yrs ysa ysb ysg ysr yss ysy yyb yyg yys yyy