cccc cccp ccee ccoc ccpe ccpp ccpr ccrc ccre ccrp cec- cece ceco cecp ceec ceop ceor cepc cepe cepo cepp cepr cer- cerc cere cero cerp ceze coce coco cocp coep coop cope copo copp copr cor- corc core coro corp corr coze cozz cpce cpep cper cpre crcc crce crcr crcz cre- crec cree creo crep croc croe croo crop cror croz crpc eccc ecce ecco eco- ecop ecpp ecrc ecrr eeee eeoc eerc eero eeze eore epcc epec epee eper epoc epor eppc eppo eppp epro eprp ercc erce ercp erec erer erez eroc eroe eroo erpe errc erre erro ezer ezop ezzo o-eo occc oce ocee ocpp ocre ocro ocrr oec- oecc oeec oere oocr ooer oooo oore ooze opec opep oper opo- opor oppo orce orco ore- orec oreo orer oro- oroe oror oroz orpc orpe orro orzo ozee ozer pccc pcce pcep pcer pcoe pcpp pcrc pcre pece peco pecr pecz peec peep peer peor pepe pepo per- perc pere pero perp perr peze pezo poce poco poer poop poor pop- popc pope popo popp porc pore poro porr porz poze pozo ppcc pper pppo pppp pprc prcc prcp pre- prec pree prep prez pro- proc proe proo prop proz rccc rcep rcpo recc rece recp recr recz reep reop repe repo repp repr rere rero reze rocc roce roco roer roop roor rooz rope ropo rorc rore roro roze rozz rpoe rrrr z-ro zeep zepo zepp zero zeze zoco zoo- zoop zope zorc zore zoro zozo zrce zrze zzzz