cccc cccp cccu ccgc ccoc ccpp ccpr ccrc ccrg ccrp ccuc ccup cgcc cgcg cgro ckck ckco ckgo ckoc ckoo ckor ckpc ckpg ckpr ckrc cock coco cocp cocu cogo cok- coko cook coop copg copo copp copr cor- corc corg cork coro corp corr couk coup cour cpcu crcc crcr crkc crkp croc crok croo crop cror crpc crug cruk crup cucc cuck cuk- cupo cupp cupr curo curr gc-c gccc gcpc gcrg gggg ggpo gkrp gocr gogo goku goog gook goop goor gopc gopo gopu gorg goro gorp gorr gou- goug gouk goup gour gpgp gprp grcc groc grog grok groo grop gror grou grpc grrr grug grur guck gugg gugu gurg gurk guro gurr guru kccc kcck kccr kccu kcgc kcgr kckc kckk kcko kckr kcog kcor kcou kcpc kcpo kcpr kcpu kcrc kcrg kcro kcrp kcrr kcru kcuk kcup kgcc kgcr kggg kggo kggr kgor kgou kgpg kgpr kgrc kgrg kgrk kgro kgrr kkck kkco kkcr kkgo kkgr kkkk kkoo kkor kkpc kkpk kkrc kkrk kkro kkrr kkup kkuu kock kocp kogg kogo kogu kokc kokk koko kokp kokr koku kooc koog kook kooo koop koor koou kopp kopr kopu korc korg kork koro korr koru kour kouu kpcc kpcr kpgg kpgr kpkk kpkr kpoc kpok kpoo kpop kpou kppc kppk kppo kppp kppr kprc kprg kprk kpro kprp kprr kpru kpug kpur krcc krcg krco krcu krkc krkk krko krkr krku kroc krog krok kroo krop kror krpr krpu krrc krrg krrk krro krrr kruc krug kruk krup krur kucc kuco kucp kucr kugo kugr kukk kuku kuok kuoo kuop kupr kupu kurk kuro kurr kuru kuuk kuur kuuu occc ocpp ocro ocrr ocur ogog ogou ogpu ogro okcu okgo okko okok okor okpo okro okur oocr ooku oooo opkg opo- opor oppo orco orgo orko oro- orok oror orpc orro orup oucc our- ouro ouu- pccc pcgg pcpp pcrc pgcc pgou pgpu pgrc pgup pock poco pogg pogo poko poku pook poop poor pop- popc popo popp porc porg pork poro porr pouk poup pour ppcc pppo pppp pprc ppru ppur prcc prcp pro- proc prog proo prop prou pruu puck pugo pugu puku pupu pur- purg puro purp purr puru puuc rccc rcgc rcpo rcrg rocc rock roco rogg rogo rokk roko rokr roku roog rook roop roor ropo rorc rork roro roru rouk roup rrrr ruck rugg rukk ruku ruok rupp rurc ruro rurp ruru u-rp uccp ucrc ugcc ugcg uggo ugro ugur uguu ukcc ukko ukok ukrc ukup ukur uocc uor- upgo upor uppc uppp uppu upup urgu uro- urok uroo urpo uruk urup urur uucp uuoc uuuu