c-- ccc ccg cck cco ccr ccu cgc cgg cgo cgr cgu ckc cko co- coc cog cok coo cor cou crc crg crk cro crr cru cuc cug cuk cuo cur cuu gcc gcg gck gco gcr gcu ggc ggg ggo ggr ggu gko goc gog gok goo gor gou grc grg grk gro grr gru gu- guc gug guk guo gur guu kcc kcg kck kcr kcu kgc kgo kgu kkc kkk kkr kku koc kog kok koo kor kou krc krg krk kro krr kru kuc kug kuk kur kuu oc- occ ocg ock oco ocr ocu ogc ogg ogo okc okg okk oko okr oku oo- ooc oog ook ooo oor or- orc org ork oro orr oru ou- ouc ouk ouo our rcc rcg rco rcr rcu rgc rgg rgk rgo rgr rkc rkg rkk rko rku roc rog rok roo ror rou rrc rrg rrk rrr rru ruc rug ruk ruo rur ruu 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 uuc uug uur uuu

cccc cccu ccgc ccoc ccrc ccrg ccuc cgcc cgcg cgro ckck ckco ckgo ckoc ckoo ckor ckrc cock coco cocu cogo cok- coko cook cor- corc corg cork coro corr couk cour crcc crcr crkc croc crok croo cror crug cruk cucc cuck cuk- curo curr gc-c gccc gcrg gggg gocr gogo goku goog gook goor gorg goro gorr gou- goug gouk gour grcc groc grog grok groo gror grou grrr grug grur guck gugg gugu gurg gurk guro gurr guru kccc kcck kccr kccu kcgc kcgr kckc kckk kcko kckr kcog kcor kcou kcrc kcrg kcro kcrr kcru kcuk kgcc kgcr kggg kggo kggr kgor kgou kgrc kgrg kgrk kgro kgrr kkck kkco kkcr kkgo kkgr kkkk kkoo kkor kkrc kkrk kkro kkrr kkuu kock kogg kogo kogu kokc kokk koko kokr koku kooc koog kook kooo koor koou korc korg kork koro korr koru kour kouu krcc krcg krco krcu krkc krkk krko krkr krku kroc krog krok kroo kror krrc krrg krrk krro krrr kruc krug kruk krur kucc kuco kucr kugo kugr kukk kuku kuok kuoo kurk kuro kurr kuru kuuk kuur kuuu occc ocro ocrr ocur ogog ogou ogro okcu okgo okko okok okor okro okur oocr ooku oooo orco orgo orko oro- orok oror orro oucc our- ouro ouu- rccc rcgc rcrg rocc rock roco rogg rogo rokk roko rokr roku roog rook roor rorc rork roro roru rouk rrrr ruck rugg rukk ruku ruok rurc ruro ruru ucrc ugcc ugcg uggo ugro ugur uguu ukcc ukko ukok ukrc ukur uocc uor- urgu uro- urok uroo uruk urur uuoc uuuu

c-cor ccccc co-co cocc- cocco cocur cokk- coorg coro- couco couru crock croco crook crouk cruck cruor cucuk cukor cuoco curro curug go-go go-oo gocco gocoo gocuk gogok gogro gorgo grgur grock grogg grokk grook grrrr gukgo gurko guroo gurro gurur ko-ko kogro kokko kokor kokou kokur koogu kooru korck korgu korku koror korro koruk krock kucuk kugur kukko kukok kukur kurgo kurku kuruc kuruk occur ockro ogogo ogugu okkur okoc okoro okrog okrug okuku okuru ooooo oroco orrgo oruku oruro ouoro r-co- ro-ro rocco rocko rocor rocou rokkk rouko ugro- ugrug ukuug urour urucu uuork uuuuu

cocco- cococo coocoo cookoo corour coruco coruro courr- crocco cruro- cuckoo curour curror cururo gogoro googoo gooroo gorgor gourou grugru gurugu k-rock kogoro kokoku kokoro kookoo korkor kororo koruru koukou kouoro kourou kukoc kurkcu kurogo kuroko kururu occour ookroo oooooo orrock orrour rococo rokkor rokuko rokuro roogoo roucou ruocco

cooccur corrour cou-cou currock goo-goo goooooo gorcock gourock gru-gru guk-guk kokocko kokorou kor-kor korkoro korucuk kourgou ogogoro rococco

co-occur cocoroco corocoro cucurucu curucucu gogogogo groogroo kukukuku kukuruku kurukuru rokkurro

couroucou groo-groo koukourou roocoocoo

kouroukoro kukkurukuu rococococo

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