c-p-c ccccc cecum ceere cemec cemre cerc- cerce cerec cerer cerre cmere crece creem creep creer creme cremp crepe crepu creu- creue creup cruce crume crump crupe crure cueup cumec cumm- cump- cuper cupr- curce curer curre curup eccup ecume eeeee eepee emcee emeer emere emmer empee emure eperc epure erem- erere erump eucre eum-u eurre mccue mcree mcrpc mecum meece meemu meere memer merce merer merre merur meuer meure mmccc mmmcc mmmmm mreru mucum mucur mumcu mumme mummu muppu mureu murre murru murum murup p-rep peece peere pepee peppe pepup perce perec perer perre peruc perur peuce peure prece preem preme premp pruce pumpe puppe purce puree purer purre purum re-up recce recep recue recur reece reeme reepe reere remee remer remue repec reppe rere- reree rerum reuer reume rucer ruere rumer rummu rupee ruper rurec u-cee umeer umeme upc-e upper ureme uruce urucu urupe uuuuu