-er -ey a-a aaa aae aak aao aar aas aay aea aee aek aeo aer aes aey aka ake akk ako akr aks aoa aoe aok aoo aor aos ar- ara are ark aro arr ars ary as- asa ase ask aso asr ass asy ay- aya aye ayk ayo ayr ays eaa eae eak eao ear eas eea eee eek eeo eer ees eey eka eke eko ekr eks eky eo- eoa eoe eok eoo eor eos era ere erk ero err ers ery es- esa ese esk eso esr ess esy eya eye eyo eyr eys ka- kaa kae kak kao kar kas kay ke- kea kee kek keo ker kes key kke kkk kkr kks kky koa koe kok koo kor kos koy kra krk kro krr krs kry ksa kse ksk kso ksr kss kya kye kyo kyr kys oaa oae oak oao oar oas oea oee oeo oer oes oey oka oke okk oko okr oks oo- ooa ook ooo oor oos or- ora ore ork oro orr ors ory os- osa ose osk oso osr oss oya oye oyo oys ra- raa rae rak rao rar ras ray re- rea ree rek reo rer res rey rke rkk rko rks rky roa roe rok roo ror ros roy rra rrk rrr rrs rsa rse rsk rso rsr rss ry- rya rye ryk ryo ryr rys ryy saa sae sak sao sar sas say se- sea see sek seo ser ses sey sk- ska ske skk sko skr sks sky soa soe sok soo sor sos soy sr- sra sre srk sro srr srs sry ss- ssa sse ssk sso ssr sss sy- sya sye syk syr sys yaa yae yak yao yar yas yay yea yee yek yeo yer yes yey yka ykk yoe yok yoo yor yos yoy yra yre yro yrs ysa yse ysk yso ysr yss ysy yye yys yyy