-th a-a a-c a-t aaa aac aah aao aar aat aax aay ac- aca acc ach aco acr act acx acy aha ahc ahh aho ahr aht ahx ahy aoa aoc aoh aoo aor aot aox ar- ara arc arh aro arr art arx ary at- ata atc ath ato atr att atx ax- axa axh axo axr axt axx ay- aya ayc ayh ayo ayr ayt ayx c-- caa cac cah cao car cat cax cay cca ccc cch cco ccr cct ccx ch- cha chc chh cho chr cht chx chy co- coa coc coh coo cor cot cox coy cra crc crh cro crr crt crx cry cta ctc cth cto ctr ctt ctx cty cxc cxh cxo cxr cxt cxx cya cyc cyo cyr cyt haa hac hah hao har hat hax hay hca hcc hch hco hcr hct hcy hha hhc hhh hho hhr hht hhy hoa hoc hoh hoo hor hot hox hoy hr- hra hrc hrh hro hrr hrt hta htc hth hto htr htt htx hty hxc hy- hya hyc hyh hyo hyr hyt hyy oaa oac oah oao oar oat oax oc- oca occ och oco ocr oct ocx oha ohc ohh oho ohr oht oo- ooa ooc ooh ooo oor oot oox or- ora orc orh oro orr ort orx ory ot- ota otc oth oto otr ott ox- oxa oxc oxo oxt oxx oxy oya oyo ra- raa rac rah rao rar rat rax ray rca rcc rch rco rcr rct rcx rh- rha rhc rhh rho rhr rht roa roc roh roo ror rot rox roy rra rrc rrh rrr rrt rta rtc rto rtr rtt rtx rty rxr ry- rya ryc ryo ryr ryy t-x taa tac tah tao tar tat tax tay tca tcc tch tco tcr tct tcx th- tha thc thh tho thr tht thx thy to- toa toc toh too tor tot tox toy tra trc trh tro trr trt trx try tta ttc tth tto ttr ttt ttx tty txt tya tyc tyo tyr tyt xaa xac xar xat xch xcr xcx xht xoa xoc xoo xor xot xox xrc xrt xrx xry xtc xtr xtx xty xxo xxx xxy xyr xyy yaa yac yah yao yar yat yax yay yca ycc ych yco ycy yha yhc yht yoc yoo yor yot yox yoy yra yrc yro yrt yta ytc yth yto ytr ytt yxa yxy yyc yyt yyy