-er -ey a-a aaa aad aae aak aar aay ad- ada add ade adk adr ady aea aed aee aek aer aey aka akd ake akk akr ar- ara ard are ark arr ary ay- aya ayd aye ayk ayr daa dad dae dak dar day dda ddd dde ddk ddr ddy de- dea ded dee dek der dey dka dke dkk dkr dra drd dre drk drr dry dy- dya dyd dye dyk dyr dyy eaa ead eae eak ear ed- eda edd ede edk edr edy eea eed eee eek eer eey eka ekd eke ekr eky era erd ere erk err ery eya eyd eye eyr ka- kaa kad kae kak kar kay kda kde kdk kdr kdy ke- kea ked kee kek ker key kke kkk kkr kky kra krd krk krr kry kya kyd kye kyr ra- raa rad rae rak rar ray rda rdd rde rdr rdy re- rea red ree rek rer rey rke rkk rky rra rrd rrk rrr ry- rya ryd rye ryk ryr ryy yaa yad yae yak yar yay yda yde ydy yea yed yee yek yer yey yka ykk yra yre yye yyy