-er -ey a-a a-b aaa aab aae aah aar aas aay ab- aba abb abe abh abr abs aby aea aeb aee aeh aer aes aey aha ahb ahe ahh ahr ahs ahy ar- ara arb are arh arr ars ary as- asa asb ase ash asr ass asy ay- aya aye ayh ayr ays baa bab bae bah bar bas bay bba bbb bbe bbh bbr bbs bby be- bea beb bee beh ber bes bey bha bhb bhe bhh bhr bhs bra brb bre brh brr brs bry bsa bsb bse bsh bsr bss bsy by- bya bye byh byr bys eaa eab eae eah ear eas eba ebb ebe ebh ebr ebs eby eea eeb eee eer ees eey eha ehb ehe ehh ehr ehs era erb ere erh err ers ery es- esa esb ese esh esr ess esy eya eye eyr eys haa hab hae hah har has hay hba hbb hbe hbh hbr hbs hby he- hea heb hee heh her hes hey hha hhb hhe hhh hhr hhs hhy hr- hra hrb hre hrh hrr hrs hsa hsb hse hsh hsr hss hsy hy- hya hyb hye hyh hyr hys hyy ra- raa rab rae rah rar ras ray rba rbb rbe rbh rbr rbs re- rea reb ree reh rer res rey rh- rha rhb rhe rhh rhr rhs rra rrb rrh rrr rrs rsa rsb rse rsh rsr rss ry- rya rye ryr rys ryy saa sab sae sah sar sas say sba sbb sbe sbh sbr sbs sby se- sea seb see seh ser ses sey sh- sha shb she shh shr shs shy sr- sra srb sre srh srr srs sry ss- ssa ssb sse ssh ssr sss sy- sya syb sye syh syr sys yaa yab yae yah yar yas yay ybe ybr ybs yby yea yeb yee yeh yer yes yey yha yhe yhs yra yre yrs ysa ysb yse ysr yss ysy yyb yye yys yyy