bbbb bbdd bbdo bblb bboy bbyo blob blod bloo blou bloy blub blud bly- bobb bobo bobu boby bodb bodo bodu body bold boll bolo bolu boly boob bood bool boud boul bouy boyd boyl boyo bubb bubo bubu budb budd budl budo budu budy bulb buld bull bulu buol buoy buyl buyo buyu byld byob byod byol byul byyd d-bo dboy dddd ddly ddub dlbd dobb dobl dobu doby dod- dodd dodo dody dold doll dolo dolu doly doob dood dool doub doud doul douy doyl doyo dub- dubb dubu duby dudd dudo dudu dull dulo dulu duly duo- duul duyl dybu dydd dyll dyo- dyoo dyou lldb llll llod lloo llud lob- lobb lobo loby lold loll lolo loly loob lood lool loud loul louu loyd luby ludd ludo lull lulu lydd lyly lyo- obbo obby oblu obol oboy odbo oddd oddy odly odoo odou odyl olbo olby oldb oldy ollo olly ooby oold oolo oooo ould oulu ouu- oyly oyou ubbo ublo ubly ubod ubud udoo ullo ully ulo- ulul uulu uuuu uydo ydul yobo yodo yold yoll yolo yoly yood yool youb youd youl yoyo yubu yudo yudu yulo yulu yuyu yyyy