bbbb bbdd bblb bdii bdmi bibb bibi bibl bidi bidu bild bili bill bilu blim blub blud blum bmdb bmmi bubb bubi bubu budb budd budi budl budu buid buiu bulb buld buli bull bulu bum- bumb dddd ddub dibb didi didu diii dili dill dimi dimm dimu dlbd dlib dlii dlil dub- dubb dubu dudd dudu duid duil duli dull dulu dumb dumi dumm duul ibbm ibid ibim ibml idbm iddm idid idil idli idub iiii iium ilbm ill- illd illi ilud ilum imbi imdb imdi imid imli immi iuiu lddm libu lidb lidl liii lilb lili lill lilu limb limi liml limm limu lldb llll llud lmii ludd ludi luli lull lulu lumb lumi mbdb mbim mddl mddm mdii mdil mdli mdud mid- midi midl miii mild mili mill milu mim- mimd mimi miui mlii mmdb mmdi mmdl mmii mmli mmmd mmmm mubi mudd mudi mudl mudu muid muil muld muli mull mulm mulu mumm mumu ubbi ubid ubii ubli ubud uddi udid udim uiml ulim ulli ulmi ulmu ulul ulum umb- umbi uulu uuuu