-er -ey a-a aaa aad aae aak aao aar aay ad- ada add ade adk ado adr ady aea aed aee aek aeo aer aey aka akd ake akk ako akr aoa aod aoe aok aoo aor ar- ara ard are ark aro arr ary ay- aya ayd aye ayk ayo ayr daa dad dae dak dao dar day dda ddd dde ddk ddo ddr ddy de- dea ded dee dek deo der dey dka dke dkk dko dkr doa dod doe dok doo dor doy dra drd dre drk dro drr dry dy- dya dyd dye dyk dyo dyr dyy eaa ead eae eak eao ear ed- eda edd ede edk edo edr edy eea eed eee eek eeo eer eey eka ekd eke eko ekr eky eo- eoa eod eoe eok eoo eor era erd ere erk ero err ery eya eyd eye eyo eyr ka- kaa kad kae kak kao kar kay kda kde kdk kdo kdr kdy ke- kea ked kee kek keo ker key kke kkk kkr kky koa kod koe kok koo kor koy kra krd krk kro krr kry kya kyd kye kyo kyr oaa oad oae oak oao oar oda odd ode odo odr oea oed oee oeo oer oey oka okd oke okk oko okr oo- ooa ood ook ooo oor or- ora ord ore ork oro orr ory oya oyd oye oyo ra- raa rad rae rak rao rar ray rda rdd rde rdo rdr rdy re- rea red ree rek reo rer rey rke rkk rko rky roa rod roe rok roo ror roy rra rrd rrk rrr ry- rya ryd rye ryk ryo ryr ryy yaa yad yae yak yao yar yay yda yde ydo ydy yea yed yee yek yeo yer yey yka ykk yod yoe yok yoo yor yoy yra yre yro yye yyy