a-a a-b aaa aab aag aak aan aar aay ab- aba abb abg abk abn abr aby ag- aga agb agg agk agn agr agy aka akb akg akk akn akr an- ana anb ang ank ann anr any ar- ara arb arg ark arn arr ary ay- aya ayk ayn ayr baa bab bag bak ban bar bay bba bbb bbg bbk bbn bbr bby bga bgb bgg bgk bgn bgr bka bkb bkg bkk bkn bkr bna bnb bng bnk bnn bnr bra brb brg brk brn brr bry by- bya byg byk byn byr gaa gab gag gak gan gar gay gba gbg gbk gbn gbr gby gga ggb ggg ggn ggr gka gkb gkn gna gnb gnn gnr gra grb grg grk grn grr gry gy- gya gyb gyn gyr ka- kaa kab kag kak kan kar kay kba kbb kbk kbn kbr kga kgb kgy kkb kkk kkn kkr kky kn- kna kng knk knn knr kra krg krk krn krr kry kya kyn kyr naa nab nag nak nan nar nay nba nbb nbg nbk nbn nbr nga ngb ngg ngk ngn nka nkk nkn nkr nky nna nnb nng nnk nnn nra nrb nrg nrk nrn nrr nry nya nyg nyk nyn nyy ra- raa rab rag rak ran rar ray rba rbb rbg rbk rbn rbr rga rgb rgg rgk rgn rgr rkb rkg rkk rky rna rnb rng rnn rnr rny rra rrb rrg rrk rrn rrr ry- rya ryg ryk ryn ryr ryy yaa yab yag yak yan yar yay ybg ybr yby yga yka ykk ykn yna yng ynk ynn yny yra yrg yrn yyb yyg yyy