cccc cccp cccv ccee ccoc ccpe ccpp ccpr ccrc ccre ccrp ccvo cec- cece ceco cecp ceec ceop ceor cepc cepe cepo cepp cepr cer- cerc cere cero cerp cery cevo cevy coce coco cocp coep coop cope copo copp copr copy cor- corc core coro corp corr cory cove covo covy coyo coyr cpce cpep cper cpre cpvc crcc crce crcr cre- crec cree creo crep croc croe croo crop cror croy crpc cry- cryo cvcc cver cvrr cyc- cycc cypc cyre cyve cyy- cyyc eccc ecce ecco eco- ecop ecpp ecrc ecrr ecrv eeee eeoc eerc eero eery eore epcc epec epee eper epoc epor eppc eppo eppp eppy epro eprp ercc erce ercp erec erer erev eroc eroe eroo erpe errc erre erro erve eryc erye ever evey evoe evoo evop evre evry eyec eyer eyey eype eyre eyry eyyr o-eo occc oce ocee ocpp ocre ocro ocrr oec- oecc oeec oere oevp 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 orve orvr ovee over ovey ovo- ovoo ovpp ovre oyce oyee oyer oyre pccc pcce pcep pcer pcoe pcpp pcrc pcre pece peco pecr pecy peec peep peer peev peor pepe pepo per- perc pere pero perp perr perv pery pevy peyo peyr poce poco poer poey poop poor pop- popc pope popo popp popy porc pore poro porr pory povo poyo poyr ppcc pper pppo pppp pprc ppye prcc prcp pre- prec pree prep prev prey pro- proc proe proo prop prov pvco pyce pyep pyo- pype pypy pyr- pyre pyro pyry rccc rcep rcpo rcvr rcyc recc rece recp recr recy reep reev reop repe repo repp repr repy rere rero rery reve revo revp revy reye rocc roce roco roer roev roey roop roor rope ropo ropy rorc rore roro rory rove rovo roye rpoe rpyc rrrr rv-c rver rype vecc veep veer veor vepe vepr ver- vere vero very veve vevo vevy veye veyr voce voer vooc voor vor- vore voro vory voye vpro vreo vroc vver vvvv vyce vyer vyre yccc ycee yeep yeer yepe yepp yere yero yerr yery yeve yeye yeyo yeyr yoop yopo yopy yore yoro yory yove yoye yoyo ypcc yver yvor yyyy