-th a-a a-b a-c a-t aaa aab aac aag aah aan aat aau aay ab- aba abb abc abg abh abn abt abu aby ac- aca acb acc acg ach acn act acu acy ag- aga agb agc agg agh agn agt agu agy aha ahb ahc ahg ahh ahn aht ahu ahy an- ana anb anc ang anh ann ant anu any at- ata atb atc atg ath atn att atu au- aua aub auc aug auh aun aut ay- aya ayc ayh ayn ayt ayu b-u baa bab bac bag bah ban bat bau bay bba bbb bbc bbg bbh bbn bbt bbu bby bca bcb bcc bcg bch bcn bct bcu bcy bga bgb bgc bgg bgh bgn bgt bgu bha bhb bhc bhg bhh bht bhu bna bnb bnc bng bnn bnt bnu bta btb btc btg bth btn btt btu bty bua bub buc bug buh bun but buu buy by- bya byc byg byh byn byt byu c-- caa cab cac cag cah can cat cau cay cba cbb cbc cbg cbh cbn cbt cbu cby cca ccb ccc ccg cch ccn cct ccu cga cgb cgc cgg cgh cgn cgt cgu cgy ch- cha chb chc chg chh chn cht chu chy cn- cna cnb cnc cng cnh cnn cnt cnu cny cta ctb ctc ctg cth ctn ctt ctu cty cua cub cuc cug cuh cun cut cuu cuy cya cyb cyc cyg cyn cyt gaa gab gac gag gah gan gat gau gay gba gbc gbg gbh gbn gbt gbu gby gca gcb gcc gcg gch gcn gct gcu gga ggb ggc ggg ggh ggn ggt ggu gha ghb ghc ghg ghh ghn ght gna gnb gnc gnn gnt gnu gta gtb gtc gtg gth gtn gtt gtu gty gu- gua gub guc gug gun gut guu guy gy- gya gyb gyn haa hab hac hag hah han hat hau hay hba hbb hbc hbg hbh hbn hbt hbu hby hca hcb hcc hcg hch hcn hct hcy hga hgb hgc hgg hgh hgn hgt hgu hgy hha hhb hhc hhg hhh hhn hht hhu hhy hna hnb hnc hng hnh hnn hnt hnu hny hta htb htc htg hth htn htt hty hua hub huc hug huh hun hut huu huy hy- hya hyb hyc hyg hyh hyn hyt hyy naa nab nac nag nah nan nat nau nay nba nbb nbc nbg nbn nbt nbu nca ncb ncc ncg nch ncn nct ncu nga ngb ngc ngg ngh ngn ngt ngu nha nhb nhc nhg nhh nhn nht nhu nhy nna nnb nnc nng nnh nnn nnt nnu nta ntb ntc ntg nth ntn ntt ntu nua nub nuc nug nuh nun nut nuu nuy nya nyc nyg nyn nyt nyu nyy taa tab tac tag tah tan tat tau tay tba tbb tbc tbg tbh tbn tbt tbu tca tcb tcc tcg tch tcn tct tcu tga tgb tgc tgg tgh tgn tgt tgu tgy th- tha thb thc thg thh thn tht thu thy tna tnb tnc tng tnh tnn tnt tta ttb ttc ttg tth ttn ttt ttu tty tua tub tuc tug tuh tun tut tuu tuy tya tyc tyg tyn tyt ua- uaa uab uac uag uah uan uat uau uay uba ubb ubc ubg ubh ubn ubt ubu uby uca ucb ucc ucg uch ucn uct ucu uga ugb ugc ugg ugh ugn ugt ugu uha uhb uhc uhh uht uhu uhy un- una unb unc ung unh unn unt unu uny uta utb utc uth utn utt utu uty uua uuc uug uun uut uuu uyc uyu yaa yab yac yag yah yan yat yau yay ybc ybg yby yca ycc ych ycu ycy yga ygc yha yhc yht yhu yna yng ynn ynu yny yta ytc yth ytn ytt ytu yua yug yuh yun yut yuu yuy yyb yyc yyg yyt yyu yyy