a-a a-b a-i a-t aaa aab aai aan aar aat aay ab- aba abb abi abn abr abt aby ai- aia aib aii ain air ait aiy an- ana anb ani ann anr ant any ar- ara arb ari arn arr art ary at- ata atb ati atn atr att ay- aya ayi ayn ayr ayt baa bab bai ban bar bat bay bba bbb bbi bbn bbr bbt bby bi- bia bib bii bin bir bit biy bna bnb bni bnn bnr bnt bra brb bri brn brr brt bry bta btb bti btn btr btt bty by- bya byi byn byr byt ia- iaa iab iai ian iar iat iba ibb ibi ibn ibr ibt iby iia iib iii iin iir iit in- ina inb ini inn inr int iny ir- ira irb iri irn irr irt iry ita itb iti itn itt ity iya iyr iyt iyy n-i naa nab nai nan nar nat nay nba nbb nbi nbn nbr nbt nia nib nii nin nir nit nna nnb nni nnn nnt nra nrb nri nrn nrr nrt nry nta ntb nti ntn ntr ntt nya nyn nyt nyy ra- raa rab rai ran rar rat ray rba rbb rbi rbn rbr rbt ria rib rii rin rir rit riy rna rnb rni rnn rnr rnt rny rra rrb rri rrn rrr rrt rta rtb rti rtn rtr rtt rty ry- rya ryn ryr ryy taa tab tai tan tar tat tay tba tbb tbi tbn tbr tbt tia tib tii tin tir tit tiy tna tnb tni tnn tnr tnt tra trb tri trn trr trt try tta ttb tti ttn ttr ttt tty tya tyn tyr tyt yaa yab yai yan yar yat yay ybi ybr yby yii yin yir yit yna ynn yny yra yrn yrt yta ytn ytr ytt yyb yyt yyy