b-r-k bbbee be-er bebek beber beebe beeke beker bekke bembe bemer berbe berek berk- berke berme berre berru berum beuer beure brebu breek breem breer breke breme bremm brere breu- brmmm brrrr bruer bruke brume brumm bubbe buber buker bukk- bumbu bumme burek burke burru buruk ebber ebure eeeee ekker ekmek ekrem ekuku ekuru embee ember embue emeer emere emerk emmer emure erbbe erber erem- erere eruke eum-u eurre k-mer kebbe kebek keber keere kekem kemer kemme kerek kerem kerre kreek kreke kreme kreuk krumm kubek kuber kukur kumeu kumru kumuk kurbu kurek kurem kurku kurre kuruk mbebe mbeku mbere mbube mburu mebbe meemu meere meker membe memer merer merke merre merur meuer meure mmmmm mreru muker mukke mukur mumbe mumme mummu mureu murre murru muruk murum rebbe reber reeme reere rekem rekke remee remer remue rere- reree rerum reuer reume rubee ruber rubke ruere rukke rumbe rumer rummu uber- ubume ukeke umbe- umber umbre umeer umeme ureme urker urubu uuuuu