bbbb bbdd bblb bdii bibb bibi bibl bidi bidu bild bili bill bilu bily blub blud bly- bubb bubi bubu budb budd budi budl budu budy buid buiu bulb buld buli bull bulu buyi buyl buyu byil byld byul byyd dddd ddly ddub dibb diby didi didu didy diii dili dill dily diyi diyu dlbd dlib dlii dlil dub- dubb dubu duby dudd dudu duid duil duli dull dulu duly duul duyl dybu dydd dyll i-by ibid ibly ibuy ibyi idid idil idli idly idub idyl iiii ill- illd illi illy ilud iluy iuiu libu lidb lidl liii lilb lili lill lilu lily liyl liyu lldb llll llud luby ludd ludi luli lull lulu luyi lydd lyly ubbi ubid ubii ubli ubly ubud uddi udid ulli ully ulul uulu uuuu ydil ydul yidi yidu yild yili yill yiud ylid ylli yubu yudu yuli yulu yuyu yyyy