bbbb bblb bibb bibi bibl bili bill bilu bily blim blub blum bly- blym bmmi bubb bubi bubu buiu bulb buli bull bulu bum- bumb buyi buyl buyu byil byul i-by ibbm ibim ibly ibml ibuy ibyi iiii iium ilbm ill- illi illy ilum iluy ilym imbi imli immi immy iuiu libu liii lilb lili lill lilu lily limb limi liml limm limu limy liyl liyu llll lmii luby luli lull lulu lumb lumi luyi lyly lymb lymm mbim miii mili mill milu mily mim- mimi mimy miui miyu mlii mlym mmii mmli mmmm mmyy mubi muil muli mull mulm mulu muly mumm mumu mumy mybb mybi myi- myl- myli myll mymy ubbi ubii ubli ubly uiml ulim ulli ully ulmi ulmu ulul ulum umb- umbi uulu uuuu yili yill ylli yubu yuli yulu yumi yuyu yyyy