c-- ccc ccg cck cco ccp ccr ccs cgc cgg cgo cgp cgr cgs cgy ckc cko cks cky co- coc cog cok coo cop cor cos coy cpc cpg cpk cpo cpp cpr cps crc crg crk cro crp crr crs cry csc csg csk cso csp csr css csy cyc cyg cyk cyo cyp cyr cys g-p gcc gcg gck gco gcp gcr gcs ggc ggg ggo ggp ggr ggs gko gkp gks goc gog gok goo gop gor gos goy gpc gpg gpk gpo gpp gpr gps grc grg grk gro grp grr grs gry gsc gsg gsk gso gsp gsr gss gy- gyo gyp gyr gys kcc kcg kck kcp kcr kcs kgc kgo kgp kgs kgy kkc kkk kkp kkr kks kky koc kog kok koo kop kor kos koy kpc kpk kpo kpp kpr kps krc krg krk kro krp krr krs kry ksc ksg ksk kso ksp ksr kss kyc kyo kyp kyr kys oc- occ ocg ock oco ocp ocr ocs ogc ogg ogo ogp ogs ogy okc okg okk oko okp okr oks oo- ooc oog ook ooo oop oor oos op- opc opg opk opo opp opr ops opy or- orc org ork oro orp orr ors ory os- osc osg osk oso osp osr oss oyo oys p-p pcc pcg pck pco pcp pcr pcs pgc pgg pgk pgo pgp pgr pgs pgy pkc pkg pko pkp pkr pks pky poc pog pok poo pop por pos poy ppc ppg ppk ppo ppp ppr pps prc prg prk pro prp prr prs pry ps- psc psg psk pso psp psr pss psy py- pyc pyg pyk pyo pyr pys rcc rcg rco rcp rcr rcs rgc rgg rgk rgo rgp rgr rgs rkc rkg rkk rko rkp rks rky roc rog rok roo rop ror ros roy rpc rpg rpk rpo rpp rpr rps rrc rrg rrk rrp rrr rrs rsc rsg rsk rso rsp rsr rss ry- ryc ryg ryk ryo ryr rys ryy scc scg sck sco scp scr scs sgc sgg sgk sgo sgp sgr sgs sk- skc skg skk sko skp skr sks sky soc sog sok soo sop sor sos soy spc spg spk spo spp spr sps spy sr- src srg srk sro srp srr srs sry ss- ssc ssg ssk sso ssp ssr sss sy- syc syg syk syp syr sys ycc yco ycp ycs ycy ygc ygo ykk yoc yog yok yoo yop yor yos yoy ypg ypo yps yrc yrg yro yrp yrs ysc ysg ysk yso ysp ysr yss ysy yyc yyg yys yyy