-ey a-a a-b a-z aaa aab aae aak aan aau aay aaz ab- aba abb abe abk abn abu aby abz aea aeb aee aek aen aeu aey aez aka akb ake akk akn aku an- ana anb ane ank ann anu any anz au- aua aub aue auk aun auz ay- aya aye ayk ayn ayu ayz az- aza azb aze azn azu azy azz b-u baa bab bae bak ban bau bay baz bba bbb bbe bbk bbn bbu bby be- bea beb bee bek ben beu bey bez bka bkb bke bkk bkn bna bnb bne bnk bnn bnu bnz bua bub bue buk bun buu buy buz by- bya bye byk byn byu byz bza bze bzn bzu bzz eaa eab eae eak ean eau eaz eba ebb ebe ebk ebn ebu eby eea eeb eee eek een eey eka ekb eke eku eky en- ena enb ene enk enn enu eny enz eu- eua eub eue eun eya eye eyn eze ezz k-z ka- kaa kab kae kak kan kau kay kaz kba kbb kbe kbk kbn kbu kbz ke- kea keb kee kek ken key kez kkb kke kkk kkn kku kky kn- kna kne knk knn knu kub kue kuk kun kuu kuy kya kye kyn kyu kyz kzy naa nab nae nak nan nau nay naz nba nbb nbe nbk nbn nbu ne- nea neb nee nek nen neu ney nez nka nke nkk nkn nku nky nna nnb nne nnk nnn nnu nnz nua nub nue nuk nun nuu nuy nya nye nyk nyn nyu nyy nzb nze nzz ua- uaa uab uae uak uan uau uay uaz uba ubb ube ubk ubn ubu uby uea ueb uee uen uey uka ukb uke ukk ukn uku ukz un- una unb une unk unn unu uny uua uue uun uuu uyu uza uzb uzu yaa yab yae yak yan yau yay yaz ybe yby ybz yea yeb yee yek yen yey yez yka ykk ykn yna yne ynk ynn ynu yny yua yue yuk yun yuu yuy yyb yye yyu yyy yyz yzb yzu yzy zaa zab zak zan zay zaz zbb zby zea zeb zee zek zen zez zka zne znn zub zuk zun zuz zzy zzz