cccc cccu ccgc ccoc ccrc ccrg ccuc cgcc cgcg cgro ckck ckco ckcy ckgo ckoc ckoo ckor ckoy ckrc ckry cock coco cocu cogo cok- coko coky cook cor- corc corg cork coro corr cory couk cour couy coyo coyr crcc crcr crkc croc crok croo cror croy crug cruk cry- cryo cucc cuck cugy cuk- curo curr cury cuy- cuyo cuyr cyc- cycc cyrk cyy- cyyc gc-c gccc gcrg gggg gocr gogo goku goky goog gook goor gorg goro gorr gory gou- goug gouk gour gouy grcc groc grog grok groo gror grou groy grrr grug grur gry- guck gugg gugu gurg gurk guro gurr guru gury guyu gyor gyr- gyro gyuu kccc kcck kccr kccu kccy kcgc kcgr kcgy kckc kckk kcko kckr kcky kcog kcor kcou kcrc kcrg kcro kcrr kcru kcry kcuk kcyk kcyy kgcc kgcr kggg kggo kggr kgor kgou kgrc kgrg kgrk kgro kgrr kguy kkck kkco kkcr kkcy kkgo kkgr kkkk kkoo kkor kkoy kkrc kkrk kkro kkrr kkuu kkyc kkyy kock kogg kogo kogu kokc kokk koko kokr koku koky kooc koog kook kooo koor koou korc korg kork koro korr koru kour kouu koyo koyy krcc krcg krco krcu krgy krkc krkk krko krkr krku krky kroc krog krok kroo kror kroy krrc krrg krrk krro krrr krry kruc krug kruk krur kryk kryo kryy kucc kuco kucr kugo kugr kukk kuku kuky kuok kuoo kurk kuro kurr kuru kury kuuk kuur kuuu kuyo kuyu kuyy kycc kyck kycr kygo kygr kykc kykk kykr kyky kyok kyoo kyor kyoy kyrc kyrk kyro kyuk kyur kyuu kyyk kyyo kyyy occc ocro ocrr ocur oggy ogog ogou ogro ogry okcu okgo okko okok okor okro okur okyo oocr ooku ooky oooo oory orco orgo orgy orko oro- orok oror oroy orro orry oucc our- ouro ouu- ouyr oyou rccc rcgc rcrg rcyc rocc rock roco rogg rogo rogy rokk roko rokr roku roky roog rook roor rorc rork roro roru rory rouk rouy rrrr ruck rugg rukk ruku ruok ruoy rurc ruro ruru ryck ryuk ucky ucrc ugcc ugcg uggo ugro ugur uguu ukcc ukko ukky ukok ukrc ukur ukyo uocc uor- urcy urgu uro- urok uroo urry uruk urur uuoc uuuu yccc ygor yguo ykko yock yogo yoko yoky yook york yoro yory youk your yoyo yuck yugg yugo yugu yuko yuku yuky yury yuyu yyyy