-er -ey a-a aaa aae aak aan aao aar aav aay aea aee aek aen aeo aer aev aey aka ake akk akn ako akr akv an- ana ane ank ann ano anr anv any aoa aoe aok aon aoo aor aov ar- ara are ark arn aro arr arv ary av- ava ave avk avn avo avr avy ay- aya aye ayk ayn ayo ayr eaa eae eak ean eao ear eav eea eee eek een eeo eer eev eey eka eke eko ekr ekv eky en- ena ene enk enn eno enr env eny eo- eoa eoe eok eon eoo eor era ere erk ern ero err erv ery eva eve evn evo evr evv evy eya eye eyn eyo eyr ka- kaa kae kak kan kao kar kav kay ke- kea kee kek ken keo ker kev key kke kkk kkn kkr kkv kky kn- kna kne knk knn kno knr koa koe kok kon koo kor koy kra krk krn kro krr krv kry kva kvk kvn kvo kvr kvv kya kye kyn kyo kyr naa nae nak nan nao nar nav nay ne- nea nee nek nen neo ner nev ney nka nke nkk nkn nko nkr nky nna nne nnk nnn nno nnv no- noa noe nok non noo nor nov noy nra nre nrk nrn nro nrr nrv nry nva nve nvk nvn nvv nya nye nyk nyn nyo nyy oaa oae oak oan oao oar oav oea oee oen oeo oer oey oka oke okk oko okr on- ona one onk onn ono onr ony oo- ooa ook oon ooo oor oov or- ora ore ork orn oro orr orv ory ov- ova ove ovo ovv oya oye oyo ra- raa rae rak ran rao rar rav ray re- rea ree rek ren reo rer rev rey rke rkk rko rkv rky rna rnn rno rnr rnv rny roa roe rok ron roo ror rov roy rra rrk rrn rrr rva rve rvn rvo rvr rvv rvy ry- rya rye ryk ryn ryo ryr ryy v-a v-e vaa vae vak van vao var vav vay vea vee vek ven veo ver vey vka vn- vna vno vnr vnv voa voe vok von voo vor vov voy vra vre vrk vrn vrr vry vva vvo vvr vvv vye vyn yaa yae yak yan yao yar yav yay yea yee yek yen yeo yer yev yey yka ykk ykn yna yne ynk ynn yny yoe yok yon yoo yor yoy yra yre yrn yro yva yve yvo yvr yvy yye yyy