c-- ccc ccg cck cco ccr ccu cgc cgg cgo cgr cgu cgy ckc cko cky co- coc cog cok coo cor cou coy crc crg crk cro crr cru cry cuc cug cuk cuo cur cuu cuy cyc cyg cyk cyo cyr gcc gcg gck gco gcr gcu ggc ggg ggo ggr ggu gko goc gog gok goo gor gou goy grc grg grk gro grr gru gry gu- guc gug guk guo gur guu guy gy- gyo gyr kcc kcg kck kcr kcu kgc kgo kgu kgy kkc kkk kkr kku kky koc kog kok koo kor kou koy krc krg krk kro krr kru kry kuc kug kuk kur kuu kuy kyc kyo kyr kyu oc- occ ocg ock oco ocr ocu ogc ogg ogo ogy okc okg okk oko okr oku oo- ooc oog ook ooo oor or- orc org ork oro orr oru ory ou- ouc ouk ouo our oyo rcc rcg rco rcr rcu rgc rgg rgk rgo rgr rkc rkg rkk rko rku rky roc rog rok roo ror rou roy rrc rrg rrk rrr rru ruc rug ruk ruo rur ruu ruy ry- ryc ryg ryk ryo ryr ryu ryy ucc ucg uck uco ucr ucu ugc ugg ugk ugo ugr ugu ukc ukk ukr uku uoc uog uok uoo uor ur- urc urg urk uro urr uru ury uuc uug uur uuu uyc uyo uyu ycc yco ycu ycy ygc ygo ykk yoc yog yok yoo yor you yoy yrc yrg yro yru yug yuk yuo yur yuu yuy yyc yyg yyu yyy