c-- ccc ccg cck cco ccp ccr cgc cgg cgo cgp cgr cgy ckc cko cky co- coc cog cok coo cop cor coy cpc cpg cpk cpo cpp cpr crc crg crk cro crp crr cry cyc cyg cyk cyo cyp cyr g-p gcc gcg gck gco gcp gcr ggc ggg ggo ggp ggr gko gkp goc gog gok goo gop gor goy gpc gpg gpk gpo gpp gpr grc grg grk gro grp grr gry gy- gyo gyp gyr kcc kcg kck kcp kcr kgc kgo kgp kgy kkc kkk kkp kkr kky koc kog kok koo kop kor koy kpc kpk kpo kpp kpr krc krg krk kro krp krr kry kyc kyo kyp kyr oc- occ ocg ock oco ocp ocr ogc ogg ogo ogp ogy okc okg okk oko okp okr oo- ooc oog ook ooo oop oor op- opc opg opk opo opp opr opy or- orc org ork oro orp orr ory oyo p-p pcc pcg pck pco pcp pcr pgc pgg pgk pgo pgp pgr pgy pkc pkg pko pkp pkr pky poc pog pok poo pop por poy ppc ppg ppk ppo ppp ppr prc prg prk pro prp prr pry py- pyc pyg pyk pyo pyr rcc rcg rco rcp rcr rgc rgg rgk rgo rgp rgr rkc rkg rkk rko rkp rky roc rog rok roo rop ror roy rpc rpg rpk rpo rpp rpr rrc rrg rrk rrp rrr ry- ryc ryg ryk ryo ryr ryy ycc yco ycp ycy ygc ygo ykk yoc yog yok yoo yop yor yoy ypg ypo yrc yrg yro yrp yyc yyg yyy