bbbee be-er beber beebe begee begem begge begue begum begur bembe bemer berbe bereg berge berme berre berru berum beuer beure brebu breem breer breg- brege bregg breme bremm brere breu- brmmm brrrr bruer bruge brugg brume brumm bubbe buber buger bugge bugre bumbu bumme burge burgu burru ebber eberg ebure eeeee egger egrem embee ember embue emeer emere emerg emmer emure erbbe erber erege erem- erere eum-u eurre gberg gberu geber gebre gebur geere gegge gemer gemme gemre gerbe germe gerre gerum grebe greer grege gregg greme grgur grrrr grubb grube grume grure gubbe guber gubru gueme guere gumbe gumer gummb gumme gurge gurre gurum gurur mbebe mbege mbere mbube mburu mebbe meemu meere meger megre membe memer mereg merer merge merre merur meuer meure mmmmm mreru muger mugur mumbe mumme mummu mureu murre murru murum rebbe rebeg reber reege reeme reere regem reger regge regme regur remee remer remue rere- reree rerum reuer reume rubee ruber ruegg ruere ruger rugge rumbe rumer rummu uber- ubume ugrug umbe- umber umbre umeer umeme ureme urger urubu uuuuu