a-a a-c aaa aac aag aao aap aar aay ac- aca acc acg aco acp acr acy ag- aga agc agg ago agp agr agy aoa aoc aog aoo aop aor ap- apa apc apg apo app apr apy ar- ara arc arg aro arp arr ary ay- aya ayc ayo ayp ayr c-- caa cac cag cao cap car cay cca ccc ccg cco ccp ccr cga cgc cgg cgo cgp cgr cgy co- coa coc cog coo cop cor coy cpa cpc cpg cpo cpp cpr cra crc crg cro crp crr cry cya cyc cyg cyo cyp cyr g-p gaa gac gag gao gap gar gay gca gcc gcg gco gcp gcr gga ggc ggg ggo ggp ggr goa goc gog goo gop gor goy gpa gpc gpg gpo gpp gpr gra grc grg gro grp grr gry gy- gya gyo gyp gyr oaa oac oag oao oap oar oc- oca occ ocg oco ocp ocr oga ogc ogg ogo ogp ogy oo- ooa ooc oog ooo oop oor op- opa opc opg opo opp opr opy or- ora orc org oro orp orr ory oya oyo p-p paa pac pag pao pap par pay pca pcc pcg pco pcp pcr pga pgc pgg pgo pgp pgr pgy poa poc pog poo pop por poy ppa ppc ppg ppo ppp ppr pra prc prg pro prp prr pry py- pya pyc pyg pyo pyr ra- raa rac rag rao rap rar ray rca rcc rcg rco rcp rcr rga rgc rgg rgo rgp rgr roa roc rog roo rop ror roy rpa rpc rpg rpo rpp rpr rra rrc rrg rrp rrr ry- rya ryc ryg ryo ryr ryy yaa yac yag yao yap yar yay yca ycc yco ycp ycy yga ygc ygo yoc yog yoo yop yor yoy ypa ypg ypo yra yrc yrg yro yrp yyc yyg yyy