cccc cccp cccu ccee ccpe ccpp ccpr ccrc ccre ccrp ccuc ccup cec- cece cecp ceec ceke cepc cepe cepp cepr cer- cerc cere cerp cery ceyu ckck ckcy cker ckey ckpc ckpr ckrc ckry cpce cpcu cpep cper cpre crcc crce crcr cre- crec cree crep creu crkc crkp crpc crue cruk crup cry- cucc cuce cuck cuek cuer cuk- cuke cupe cupp cupr cure curr cury cuy- cuyp cuyr cyc- cycc cyke cypc cyre cyrk cyy- cyyc eccc ecce ecky ecpp ecrc ecrr ecru eeee eeke eerc eery ekek eker ekpe ekur epcc epec epee eper eppc eppp eppy eprp ercc erce ercp erec erer erke erpe errc erre eruc erur eryc erye euer eur- eurc eure eury eyck eyec eyer eyey eyke eype eyre eyry eyup eyyr kccc kcck kccr kccu kccy kcec kcee kcep kceu kcey kckc kckk kckr kcky kcpc kcpr kcpu kcrc kcrp kcrr kcru kcry kcue kcuk kcup kcye kcyk kcyy keck kecr keek keep keer kekc keke keku kep- kepc kepe kepu kepy ker- kerc kere kerk kerp kerr keru keup keur keye keyu keyy kkck kkcr kkcy kkkk kkpc kkpk kkrc kkre kkrk kkrr kkup kkuu kkyc kkyy kpcc kpcr kpek kper kpke kpkk kpkr kpky kppc kppk kppp kppr kprc kpre kprk kprp kprr kpru kpur kpyk kpyr krcc krce krcu krec kree krek kreu krkc krke krkk krkr krku krky krpr krpu krrc krre krrk krrr krry kruc krue kruk krup krur krye kryk kryp kryy kucc kuce kucp kucr kuek kueu kuke kukk kuku kuky kupe kupr kupu kure kurk kurr kuru kury kuuk kuur kuuu kuyu kuyy kycc kyck kycr kyee kykc kyke kykk kykr kyky kyp- kypc kype kypr kyrc kyre kyrk kyuk kyur kyuu kyyk kyyy pccc pcce pcep pcer pcpp pcrc pcre pece peck pecr pecy peec peek peep peer peke pekk pepe per- perc pere perk perp perr peru pery peur peyr ppcc pper pppp pprc ppru ppur ppye prcc prcp pre- prec pree prek prep preu prey prky prue pruu pryk pu-e puce puck puer pueu puke puku puky pupe pupu pupy pur- pure purp purr puru pury puuc puy- pyce pyck pyep pyke pykk pype pypy pyr- pyre pyrk pyry rccc rcep rcyc recc rece reck recp recr recu recy reek reep reke reky repe repp repr repu repy rere reru rery reue reuk reup reuu reye reyk rpyc rrrr ruce ruck ruer ruke rukk ruku rupe rupp rupy rurc rure rurp ruru ryck ryke rype ryue ryuk u-rp uccp ucky ucrc ukcc ukek ukeu ukky ukrc ukup ukur uppc uppe uppp uppu uppy upup urcy ure- urey urke urre urry uruk urup urur uucp uuuu uyre yccc ycee ye-u yeck yeek yeep yeer yeke yepe yepp yere yerk yerr yery yeue yeuk yeye yeyr ykep ykey ypcc yrke yuce yuck yuer yuke yuku yuky yure yury yuye yuyu yyyy