a-a a-b a-c aaa aab aac aag aah aan aau aay ab- aba abb abc abg abh abn abu aby ac- aca acb acc acg ach acn acu acy ag- aga agb agc agg agh agn agu agy aha ahb ahc ahg ahh ahn ahu ahy an- ana anb anc ang anh ann anu any au- aua aub auc aug auh aun ay- aya ayc ayh ayn ayu b-u baa bab bac bag bah ban bau bay bba bbb bbc bbg bbh bbn bbu bby bca bcb bcc bcg bch bcn bcu bcy bga bgb bgc bgg bgh bgn bgu bha bhb bhc bhg bhh bhu bna bnb bnc bng bnn bnu bua bub buc bug buh bun buu buy by- bya byc byg byh byn byu c-- caa cab cac cag cah can cau cay cba cbb cbc cbg cbh cbn cbu cby cca ccb ccc ccg cch ccn ccu cga cgb cgc cgg cgh cgn cgu cgy ch- cha chb chc chg chh chn chu chy cn- cna cnb cnc cng cnh cnn cnu cny cua cub cuc cug cuh cun cuu cuy cya cyb cyc cyg cyn gaa gab gac gag gah gan gau gay gba gbc gbg gbh gbn gbu gby gca gcb gcc gcg gch gcn gcu gga ggb ggc ggg ggh ggn ggu gha ghb ghc ghg ghh ghn gna gnb gnc gnn gnu gu- gua gub guc gug gun guu guy gy- gya gyb gyn haa hab hac hag hah han hau hay hba hbb hbc hbg hbh hbn hbu hby hca hcb hcc hcg hch hcn hcy hga hgb hgc hgg hgh hgn hgu hgy hha hhb hhc hhg hhh hhn hhu hhy hna hnb hnc hng hnh hnn hnu hny hua hub huc hug huh hun huu huy hy- hya hyb hyc hyg hyh hyn hyy naa nab nac nag nah nan nau nay nba nbb nbc nbg nbn nbu nca ncb ncc ncg nch ncn ncu nga ngb ngc ngg ngh ngn ngu nha nhb nhc nhg nhh nhn nhu nhy nna nnb nnc nng nnh nnn nnu nua nub nuc nug nuh nun nuu nuy nya nyc nyg nyn nyu nyy ua- uaa uab uac uag uah uan uau uay uba ubb ubc ubg ubh ubn ubu uby uca ucb ucc ucg uch ucn ucu uga ugb ugc ugg ugh ugn ugu uha uhb uhc uhh uhu uhy un- una unb unc ung unh unn unu uny uua uuc uug uun uuu uyc uyu yaa yab yac yag yah yan yau yay ybc ybg yby yca ycc ych ycu ycy yga ygc yha yhc yhu yna yng ynn ynu yny yua yug yuh yun yuu yuy yyb yyc yyg yyu yyy