-th a-a a-c a-t aaa aac aah aan aao aat aax aay ac- aca acc ach acn aco act acx acy aha ahc ahh ahn aho aht ahx ahy an- ana anc anh ann ano ant anx any aoa aoc aoh aon aoo aot aox at- ata atc ath atn ato att atx ax- axa axh axn axo axt axx ay- aya ayc ayh ayn ayo ayt ayx c-- caa cac cah can cao cat cax cay cca ccc cch ccn cco cct ccx ch- cha chc chh chn cho cht chx chy cn- cna cnc cnh cnn cno cnt cnx cny co- coa coc coh con coo cot cox coy cta ctc cth ctn cto ctt ctx cty cxc cxh cxo cxt cxx cya cyc cyn cyo cyt haa hac hah han hao hat hax hay hca hcc hch hcn hco hct hcy hha hhc hhh hhn hho hht hhy hna hnc hnh hnn hno hnt hny hoa hoc hoh hon hoo hot hox hoy hta htc hth htn hto htt htx hty hxc hy- hya hyc hyh hyn hyo hyt hyy naa nac nah nan nao nat nax nay nca ncc nch ncn nco nct ncx nha nhc nhh nhn nht nhy nna nnc nnh nnn nno nnt no- noa noc noh non noo not nox noy nta ntc nth ntn nto ntt ntx nxc nxt nya nyc nyn nyo nyt nyx nyy oaa oac oah oan oao oat oax oc- oca occ och ocn oco oct ocx oha ohc ohh ohn oho oht on- ona onc onh onn ono ont onx ony oo- ooa ooc ooh oon ooo oot oox ot- ota otc oth otn oto ott ox- oxa oxc oxn oxo oxt oxx oxy oya oyo t-x taa tac tah tan tao tat tax tay tca tcc tch tcn tco tct tcx th- tha thc thh thn tho tht thx thy tna tnc tnh tnn tno tnt tnx to- toa toc toh ton too tot tox toy tta ttc tth ttn tto ttt ttx tty txn txt tya tyc tyn tyo tyt xaa xac xan xat xch xcx xht xna xnc xno xoa xoc xon xoo xot xox xtc xtx xty xxo xxx xxy xyy yaa yac yah yan yao yat yax yay yca ycc ych yco ycy yha yhc yht yna ynn yny yoc yon yoo yot yox yoy yta ytc yth ytn yto ytt yxa yxy yyc yyt yyy