a-a a-c a-t aaa aac aad aao aar aat aay ac- aca acc acd aco acr act acy ad- ada adc add ado adr adt ady aoa aoc aod aoo aor aot ar- ara arc ard aro arr art ary at- ata atc atd ato atr att ay- aya ayc ayd ayo ayr ayt c-- caa cac cad cao car cat cay cca ccc ccd cco ccr cct cda cdc cdd cdo cdr cdt cdy co- coa coc cod coo cor cot coy cra crc crd cro crr crt cry cta ctc ctd cto ctr ctt cty cya cyc cyd cyo cyr cyt daa dac dad dao dar dat day dca dcc dcd dco dcr dct dda ddc ddd ddo ddr ddt ddy doa doc dod doo dor dot doy dra drc drd dro drr drt dry dta dtc dtd dto dtr dtt dty dy- dya dyc dyd dyo dyr dyy oaa oac oad oao oar oat oc- oca occ ocd oco ocr oct oda odc odd odo odr odt oo- ooa ooc ood ooo oor oot or- ora orc ord oro orr ort ory ot- ota otc otd oto otr ott oya oyd oyo ra- raa rac rad rao rar rat ray rca rcc rcd rco rcr rct rda rdc rdd rdo rdr rdt rdy roa roc rod roo ror rot roy rra rrc rrd rrr rrt rta rtc rtd rto rtr rtt rty ry- rya ryc ryd ryo ryr ryy taa tac tad tao tar tat tay tca tcc tcd tco tcr tct tda tdc tdd tdo tdr tdt tdy to- toa toc tod too tor tot toy tra trc trd tro trr trt try tta ttc ttd tto ttr ttt tty tya tyc tyd tyo tyr tyt yaa yac yad yao yar yat yay yca ycc ycd yco ycy yda ydo ydt ydy yoc yod yoo yor yot yoy yra yrc yro yrt yta ytc ytd yto ytr ytt yyc yyt yyy