a-a a-c a-t aaa aac aaf aao aar aat aay ac- aca acc acf aco acr act acy af- afa afc aff afo afr aft afy aoa aoc aof aoo aor aot ar- ara arc arf aro arr art ary at- ata atc atf ato atr att ay- aya ayc ayf ayo ayr ayt c-- caa cac caf cao car cat cay cca ccc ccf cco ccr cct cfa cfc cff cfo cfr cft co- coa coc cof coo cor cot coy cra crc crf cro crr crt cry cta ctc ctf cto ctr ctt cty cya cyc cyf cyo cyr cyt faa fac faf fao far fat fay fca fcc fcf fco fcr fct fcy ffa ffc fff ffo ffr fft ffy foa foc fof foo for fot foy fra frc frf fro frr frt fry fta ftc ftf fto ftr ftt fty fy- fya fyc fyo oaa oac oaf oao oar oat oc- oca occ ocf oco ocr oct of- ofa ofc off ofo ofr oft oo- ooa ooc oof ooo oor oot or- ora orc orf oro orr ort ory ot- ota otc otf oto otr ott oya oyo ra- raa rac raf rao rar rat ray rca rcc rcf rco rcr rct rfa rfc rff rfo rfr rft roa roc rof roo ror rot roy rra rrc rrf rrr rrt rta rtc rtf rto rtr rtt rty ry- rya ryc ryf ryo ryr ryy taa tac taf tao tar tat tay tca tcc tcf tco tcr tct tfa tfc tff tfo tfr tft to- toa toc tof too tor tot toy tra trc trf tro trr trt try tta ttc ttf tto ttr ttt tty tya tyc tyf tyo tyr tyt yaa yac yaf yao yar yat yay yca ycc ycf yco ycy yfa yfc yff yfr yft yoc yof yoo yor yot yoy yra yrc yrf yro yrt yta ytc ytf yto ytr ytt yyc yyf yyt yyy