bbbee be-er beber beebe beene bene- benne bennu benue benun benur berbe beren berne berre berru berun beuer beure brebu breen breer brene brenn brere breu- brrrr bruen bruer brune brunn bruun bubbe buben buber bunne bunun buren burn- burne burru burun ebber ebene ebern ebner ebure eeeee eener enbun enure enurn erbbe erben erber ereen erere ernen eurre neber neere neree nerre nerur neuen neuer neueu neune neur- neure nnebe nu-nu nunun nure- nurun rebbe reber rebun reene reere renee rener renne rere- reree rerun reuen reuer reune rubee ruben ruber ruere rueun runer runne ubeen uber- unnun unnur unrun unurn urubu uuuuu