a-a a-z aaa aak aan aao aar aay aaz aka akk akn ako akr an- ana ank ann ano anr any anz aoa aok aon aoo aor ar- ara ark arn aro arr ary arz ay- aya ayk ayn ayo ayr ayz az- aza azn azo azy azz k-z ka- kaa kak kan kao kar kay kaz kkk kkn kkr kky kn- kna knk knn kno knr koa kok kon koo kor koy koz kra krk krn kro krr kry kya kyn kyo kyr kyz kzo kzy naa nak nan nao nar nay naz nka nkk nkn nko nkr nky nna nnk nnn nno nnz no- noa nok non noo nor noy noz nra nrk nrn nro nrr nry nrz nya nyk nyn nyo nyy nzo nzz oaa oak oan oao oar oka okk oko okr on- ona onk onn ono onr ony oo- ooa ook oon ooo oor or- ora ork orn oro orr ory orz oya oyo oza ozo ozz ra- raa rak ran rao rar ray raz rkk rko rky rkz rna rnn rno rnr rny rnz roa rok ron roo ror roy roz rra rrk rrn rrr ry- rya ryk ryn ryo ryr ryy ryz rza rzo rzy yaa yak yan yao yar yay yaz yka ykk ykn yna ynk ynn yny yok yon yoo yor yoy yra yrn yro yyy yyz yzr yzy zaa zak zan zao zar zay zaz zka znn zno zo- zoa zok zon zoo zor zro zzr zzy zzz