a-a a-b a-t aaa aab aad aag aan aat aay ab- aba abb abd abg abn abt aby ad- ada adb add adg adn adt ady ag- aga agb agd agg agn agt agy an- ana anb and ang ann ant any at- ata atb atd atg atn att ay- aya ayd ayn ayt baa bab bad bag ban bat bay bba bbb bbd bbg bbn bbt bby bda bdb bdd bdg bdt bdy bga bgb bgd bgg bgn bgt bna bnb bnd bng bnn bnt bta btb btd btg btn btt bty by- bya byd byg byn byt daa dab dad dag dan dat day dba dbb dbd dbg dbn dbt dby dda ddb ddd ddg ddn ddt ddy dga dgd dgg dgn dgt dna dnb dnd dng dnn dnt dny dta dtb dtd dtg dtn dtt dty dy- dya dyb dyd dyn dyy g-d gaa gab gad gag gan gat gay gba gbd gbg gbn gbt gby gda gdb gdd gdn gdt gga ggb ggd ggg ggn ggt gna gnb gnd gnn gnt gta gtb gtd gtg gtn gtt gty gy- gya gyb gyd gyn naa nab nad nag nan nat nay nba nbb nbd nbg nbn nbt nda ndb ndd ndg ndn ndt ndy nga ngb ngd ngg ngn ngt nna nnb nng nnn nnt nta ntb ntd ntg ntn ntt nya nyd nyg nyn nyt nyy taa tab tad tag tan tat tay tba tbb tbd tbg tbn tbt tda tdb tdd tdg tdn tdt tdy tga tgb tgg tgn tgt tgy tna tnb tnd tng tnn tnt tta ttb ttd ttg ttn ttt tty tya tyd tyg tyn tyt yaa yab yad yag yan yat yay ybg yby yda ydg ydn ydt ydy yga yna ynd yng ynn yny yta ytd ytn ytt yyb yyg yyt yyy