-er -ey a-a aaa aae aak aar aau aay aea aee aek aer aeu aey aka ake akk akr aku ar- ara are ark arr aru ary au- aua aue auk aur ay- aya aye ayk ayr ayu eaa eae eak ear eau eea eee eek eer eey eka eke ekr eku eky era ere erk err eru ery eu- eua eue eur eya eye eyr ka- kaa kae kak kar kau kay ke- kea kee kek ker key kke kkk kkr kku kky kra krk krr kru kry kue kuk kur kuu kuy kya kye kyr kyu ra- raa rae rak rar rau ray re- rea ree rek rer reu rey rke rkk rku rky rra rrk rrr rru rua rue ruk rur ruu ruy ry- rya rye ryk ryr ryu ryy ua- uaa uae uak uar uau uay uea uee uer uey uka uke ukk ukr uku ur- ura ure urk urr uru ury uua uue uur uuu uyu yaa yae yak yar yau yay yea yee yek yer yey yka ykk yra yre yru yua yue yuk yur yuu yuy yye yyu yyy