c-- ccc cck cco ccr ccu ckc cko cky co- coc cok coo cor cou coy crc crk cro crr cru cry cuc cuk cuo cur cuu cuy cyc cyk cyo cyr kcc kck kcr kcu kkc kkk kkr kku kky koc kok koo kor kou koy krc krk kro krr kru kry kuc kuk kur kuu kuy kyc kyo kyr kyu oc- occ ock oco ocr ocu okc okk oko okr oku oo- ooc ook ooo oor or- orc ork oro orr oru ory ou- ouc ouk ouo our oyo rcc rco rcr rcu rkc rkk rko rku rky roc rok roo ror rou roy rrc rrk rrr rru ruc ruk ruo rur ruu ruy ry- ryc ryk ryo ryr ryu ryy ucc uck uco ucr ucu ukc ukk ukr uku uoc uok uoo uor ur- urc urk uro urr uru ury uuc uur uuu uyc uyo uyu ycc yco ycu ycy ykk yoc yok yoo yor you yoy yrc yro yru yuk yuo yur yuu yuy yyc yyu yyy

cccc cccu ccoc ccrc ccuc ckck ckco ckcy ckoc ckoo ckor ckoy ckrc ckry cock coco cocu cok- coko coky cook cor- corc cork coro corr cory couk cour couy coyo coyr crcc crcr crkc croc crok croo cror croy cruk cry- cryo cucc cuck cuk- curo curr cury cuy- cuyo cuyr cyc- cycc cyrk cyy- cyyc kccc kcck kccr kccu kccy kckc kckk kcko kckr kcky kcor kcou kcrc kcro kcrr kcru kcry kcuk kcyk kcyy kkck kkco kkcr kkcy kkkk kkoo kkor kkoy kkrc kkrk kkro kkrr kkuu kkyc kkyy kock kokc kokk koko kokr koku koky kooc kook kooo koor koou korc kork koro korr koru kour kouu koyo koyy krcc krco krcu krkc krkk krko krkr krku krky kroc krok kroo kror kroy krrc krrk krro krrr krry kruc kruk krur kryk kryo kryy kucc kuco kucr kukk kuku kuky kuok kuoo kurk kuro kurr kuru kury kuuk kuur kuuu kuyo kuyu kuyy kycc kyck kycr kykc kykk kykr kyky kyok kyoo kyor kyoy kyrc kyrk kyro kyuk kyur kyuu kyyk kyyo kyyy occc ocro ocrr ocur okcu okko okok okor okro okur okyo oocr ooku ooky oooo oory orco orko oro- orok oror oroy orro orry oucc our- ouro ouu- ouyr oyou rccc rcyc rocc rock roco rokk roko rokr roku roky rook roor rorc rork roro roru rory rouk rouy rrrr ruck rukk ruku ruok ruoy rurc ruro ruru ryck ryuk ucky ucrc ukcc ukko ukky ukok ukrc ukur ukyo uocc uor- urcy uro- urok uroo urry uruk urur uuoc uuuu yccc ykko yock yoko yoky yook york yoro yory youk your yoyo yuck yuko yuku yuky yury yuyu yyyy

c-cor ccccc ccoyo co-co cocc- cocco cocky cocur cocuy cokk- cooky corcy corky coro- corry cory- couco coucy couru coury crock croco crocy crook crouk crouy cruck cruor cryo- cucuk cucuy cukor cuoco curro curry cykyr ko-ko kokko kokor kokou kokry kokur kokyu kooky kooru korck korku koror korro korry koruk koryo koury koyuk krock kryo- kryry kucuk kucyk kukko kukok kukur kuoyu kurku kuruc kuruk kuryk kyoko occoy occur ockro okkur okoc okoro okoyo okuku okuru ooooo oroco oruku oruro oryou ouoro oyoko oyoor oyrur r-co- ro-ro rocco rocko rocky rocor rocou rokkk rokky rooky roucy rouko rouky royko royoc rucky ryoko ryuko u-roy uoyro urour urucu uryu uryuu uuork uuuuu y-o-u yo-yo yokoo yokou yorck yorro youku youok yucky yukky yukou yuory yurok yuruk

cocco- coccy- cococo coocoo cookoo cooyoo corour corroy coruco coruro courcy courr- courry crocco crocky cruro- cuckoo cucuyo curour curror cururo cykory k-rock kockoy kok-oy kokoku kokoro kokory kookoo kookyo korkor kororo koruru koryu koukou kouoro kourou kukoc kurkcu kuroko kururu occour ookroo oooooo ororry orrock orrour orrouy rococo rocroy rokkor rokuko rokuro roucou ruocco ryukyu ryuo yoroko yoyoyo

cocoyoc cooccur corrour cou-cou currock kokocko kokorou kokuryu kor-kor korkoro korucuk koyukuk koyyuru kyrykyy okrouyo rockyou rococco rokyoku royyuru yor-yor

co-occur cocoroco corocoro cucurucu curucucu kukukuku kukuruku kurukuru kyoroku rokkurro yokyoku

courcoury couroucou crycrycry koukourou rockcorry roocoocoo youyouyou

kouroukoro kukkurukuu rococococo rococoyoyo yoyoyoyoyo

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