a-a a-b a-i a-t aaa aab aag aai aan aao aat aay ab- aba abb abg abi abn abo abt aby ag- aga agb agg agi agn ago agt agy ai- aia aib aig aii ain aio ait aiy an- ana anb ang ani ann ano ant any aoa aob aog aoi aon aoo aot at- ata atb atg ati atn ato att ay- aya ayi ayn ayo ayt baa bab bag bai ban bao bat bay bba bbb bbg bbi bbn bbo bbt bby bga bgb bgg bgi bgn bgo bgt bi- bia bib big bii bin bio bit biy bna bnb bng bni bnn bno bnt boa bob bog boi bon boo bot boy bta btb btg bti btn bto btt bty by- bya byg byi byn byo byt gaa gab gag gai gan gao gat gay gba gbg gbi gbn gbo gbt gby gga ggb ggg ggi ggn ggo ggt gia gib gig gii gin gio git giy gna gnb gni gnn gno gnt goa gob gog goi gon goo got goy gta gtb gtg gti gtn gto gtt gty gy- gya gyb gyn gyo ia- iaa iab iag iai ian iao iat iba ibb ibg ibi ibn ibo ibt iby iga igb igg igi ign igo igt igy iia iib iii iin iio iit in- ina inb ing ini inn ino int iny io- ioa iob iog ioi ion ioo iot ita itb itg iti itn ito itt ity iya iyo iyt iyy n-i naa nab nag nai nan nao nat nay nba nbb nbg nbi nbn nbo nbt nga ngb ngg ngi ngn ngo ngt nia nib nig nii nin nio nit nna nnb nng nni nnn nno nnt no- noa nob nog noi non noo not noy nta ntb ntg nti ntn nto ntt nya nyg nyn nyo nyt nyy o-i oaa oab oag oai oan oao oat ob- oba obb obg obi obn obo obt oby oga ogg ogi ogn ogo ogt ogy oia oib oii oin oio oit on- ona onb ong oni onn ono ont ony oo- ooa oob oog ooi oon ooo oot ot- ota otb otg oti otn oto ott oya oyi oyo taa tab tag tai tan tao tat tay tba tbb tbg tbi tbn tbo tbt tga tgb tgg tgi tgn tgo tgt tgy tia tib tig tii tin tio tit tiy tna tnb tng tni tnn tno tnt to- toa tob tog toi ton too tot toy tta ttb ttg tti ttn tto ttt tty tya tyg tyn tyo tyt yaa yab yag yai yan yao yat yay ybg ybi yby yga ygo yig yii yin yio yit yna yng ynn yny yob yog yoi yon yoo yot yoy yta ytn yto ytt yyb yyg yyt yyy