cccc cccp cccu ccee ccoc ccpe ccpp ccpr ccrc ccre ccrp ccuc ccup cec- cece ceco cecp ceec ceop ceor ceou cepc cepe cepo cepp cepr cer- cerc cere cero cerp cery ceyu coce coco cocp cocu coep coop cope copo copp copr copy cor- corc core coro corp corr cory coue coup cour couy coyo coyr cpce cpcu cpep cper cpre crcc crce crcr cre- crec cree creo crep creu croc croe croo crop cror croy crpc crue crup cry- cryo cucc cuce cuer cupe cupo cupp cupr cure curo curr cury cuy- cuyo cuyp cuyr cyc- cycc cypc cyre cyy- cyyc eccc ecce ecco eco- ecop ecou ecpp ecrc ecrr ecru eeee eeoc eerc eero eery eore epcc epec epee eper epoc epor eppc eppo eppp eppy epro eprp ercc erce ercp erec erer eroc eroe eroo erpe errc erre erro eruc erur eryc erye euer eur- eurc eure euro eury eyec eyer eyey eype eyre eyry eyup eyyr o-eo occc oce ocee ocpp ocre ocro ocrr ocur oec- oecc oeec oere oeye oeyo oocr ooer oooo oore oory opec opep oper opo- opor oppo oppy opry opye orce orco ore- orec oreo orer orey oro- oroe oror oroy orpc orpe orro orry orup oucc ouer oupe our- oure ouro ouu- ouyr oyce oyee oyer oyeu oyou oyre pccc pcce pcep pcer pcoe pcpp pcrc pcre pece peco pecr pecy peec peep peer peor peou pepe pepo per- perc pere pero perp perr peru pery peur peyo peyr poce poco poer poey poop poor pop- popc pope popo popp popy porc pore poro porr pory poup pour pouy poyo poyr ppcc pper pppo pppp pprc ppru ppur ppye prcc prcp pre- prec pree prep preu prey pro- proc proe proo prop prou prue pruu pu-e puce pueo puer pueu puoy pupe pupu pupy pur- pure puro purp purr puru pury puuc puy- puyo pyce pyep pyo- pype pypy pyr- pyre pyro pyry rccc rcep rcpo rcyc recc rece recp recr recu recy reep reop reou repe repo repp repr repu repy rere rero reru rery reue reup reuu reye rocc roce roco roer roey roop roor rope ropo ropy rorc rore roro roru rory roue roup rouy roye rpoe rpyc rrrr ruce ruer ruoy rupe rupp rupy rurc rure ruro rurp ruru rype ryue u-rp uccp ucrc uocc uor- uore upor uppc uppe uppp uppu uppy upup urcy ure- urey uro- uroo urpo urre urry urup urur uucp uuoc uuuu uyre yccc ycee ye-u yeep yeer yepe yepp yere yero yerr yery yeue yeye yeyo yeyr yoop yopo yopy yore yoro yory youe youp your yoye yoyo ypcc yuce yuer yure yury yuye yuyu yyyy