a-a a-b a-i a-t aaa aab aai aan aat aay ab- aba abb abi abn abt aby ai- aia aib aii ain ait aiy an- ana anb ani ann ant any at- ata atb ati atn att ay- aya ayi ayn ayt baa bab bai ban bat bay bba bbb bbi bbn bbt bby bi- bia bib bii bin bit biy bna bnb bni bnn bnt bta btb bti btn btt bty by- bya byi byn byt ia- iaa iab iai ian iat iba ibb ibi ibn ibt iby iia iib iii iin iit in- ina inb ini inn int iny ita itb iti itn itt ity iya iyt iyy n-i naa nab nai nan nat nay nba nbb nbi nbn nbt nia nib nii nin nit nna nnb nni nnn nnt nta ntb nti ntn ntt nya nyn nyt nyy taa tab tai tan tat tay tba tbb tbi tbn tbt tia tib tii tin tit tiy tna tnb tni tnn tnt tta ttb tti ttn ttt tty tya tyn tyt yaa yab yai yan yat yay ybi yby yii yin yit yna ynn yny yta ytn ytt yyb yyt yyy