a-a a-c aaa aac aag aao aar aay ac- aca acc acg aco acr acy ag- aga agc agg ago agr agy aoa aoc aog aoo aor ar- ara arc arg aro arr ary ay- aya ayc ayo ayr c-- caa cac cag cao car cay cca ccc ccg cco ccr cga cgc cgg cgo cgr cgy co- coa coc cog coo cor coy cra crc crg cro crr cry cya cyc cyg cyo cyr gaa gac gag gao gar gay gca gcc gcg gco gcr gga ggc ggg ggo ggr goa goc gog goo gor goy gra grc grg gro grr gry gy- gya gyo gyr oaa oac oag oao oar oc- oca occ ocg oco ocr oga ogc ogg ogo ogy oo- ooa ooc oog ooo oor or- ora orc org oro orr ory oya oyo ra- raa rac rag rao rar ray rca rcc rcg rco rcr rga rgc rgg rgo rgr roa roc rog roo ror roy rra rrc rrg rrr ry- rya ryc ryg ryo ryr ryy yaa yac yag yao yar yay yca ycc yco ycy yga ygc ygo yoc yog yoo yor yoy yra yrc yrg yro yyc yyg yyy