ccccc ceene ceere cence cerc- cerce cerec ceren cerer cerne cerre cnnfn cnnnn crece creen creer cren- creve crnce crnec crner cvrce eccen eeeee eence eener eevee eever efere effer efren encre enfce enfer enver ereen erere ereve ernen erven even- evene evere everr eveve evren feere fence fener fenne ferce feren ferr- ferre fever fevre freer frere ncree necr- neece neere neeve nefen nefer neffe nefre neree nerre nerv- nerve neven never nevre nevve nnfcc recce recen reece reefe reene reere reeve refen refer reffe refne rence renee rener renfe renne rere- reree reven rever vecer veere veeve vence venee vener venev venne veren verne verre verve vevce vever vrcen