c-p-c ccccc ceere cerc- cerce cerec cerer cerre crece creep creer crepe crepu creu- creue creup creve cruce crupe crure cruve cueup cuper cupr- curce curer curre curup curve cuvee cvrce eccup eeeee eepee eevee eever eperc epure erere ereve eucre eurre evere everr eveve p-rep peece peere peeve pepee peppe pepup perce perec perer perre peruc perur perve peuce peure prece preve pruce pruve puppe purce puree purer purre re-up recce recep recue recur reece reepe reere reeve repec reppe rere- reree reuer revep rever revue revup rucer ruere rupee ruper rurec u-cee upc-e upper uruce urucu urupe uuuuu vecer veere veeve veper verre verve veuve vevce vever vrpec vuere vuver