b-r-k bbbee be-er bebek beber becke beebe beeke beeve beker bekke berbe berck berec berek berk- berke berre bevce bever bevke brece breck breek breer breke brere breve brrrr ccccc cebec ceber ceere cerc- cerce cerec cerer cerke cerre crebe crece creek creer creke creve cvrce ebber ecker eecke eeeee eevee eever ekker erbbe erber erere ereve erkec eveck evere everr eveve kebbe kebek keber kecer keere keeve kekec kerek kerre kerve kever kreek kreke rebbe rebec reber recce recke reece reere reeve rekke rere- reree rever veber vebre vecer vecke veeck veere veeve vekke vekre vereb verek verke verre verve vevce vever