a-a a-z aaa aak aan aao aav aay aaz aka akk akn ako akv an- ana ank ann ano anv any anz aoa aok aon aoo aov av- ava avk avn avo avy avz ay- aya ayk ayn ayo ayz az- aza azn azo azy azz k-z ka- kaa kak kan kao kav kay kaz kkk kkn kkv kky kn- kna knk knn kno koa kok kon koo koy koz kva kvk kvn kvo kvv kya kyn kyo kyz kzo kzy naa nak nan nao nav nay naz nka nkk nkn nko nky nna nnk nnn nno nnv nnz no- noa nok non noo nov noy noz nva nvk nvn nvv nya nyk nyn nyo nyy nzo nzz oaa oak oan oao oav oka okk oko on- ona onk onn ono ony oo- ooa ook oon ooo oov ov- ova ovo ovv oya oyo oza ozo ozz v-a vaa vak van vao vav vay vaz vka vn- vna vno vnv voa vok von voo vov voy voz vva vvo vvv vvz vyn vzn yaa yak yan yao yav yay yaz yka ykk ykn yna ynk ynn yny yok yon yoo yoy yva yvo yvy yyy yyz yzy zaa zak zan zao zav zay zaz zka znn zno zo- zoa zok zon zoo zzy zzz