bbbb bbdd bbdo bblb bboy bbyo bdii bibb bibi bibl bibo bidi bido bild bili bill bilo bily bio- bioi biol blio blob blod bloo bloy bly- bobb bobi bobo boby bodb bodi bodo body boi- boid boii boil bold boli boll bolo boly boob bood bool boyd boyi boyl boyo byil byld byob byod byoi byol byyd d-bo dboy dddd ddly dibb dibo diby didi dido didy diii dili dill dilo dily diol diyi dlbd dlib dlii dlil dobb dobi dobl doby dod- dodd dodi dodo dody doid doil dold doli doll dolo doly doob dood dool doyl doyo dydd dyio dyll dyo- dyoo i-by ibdo ibid ibly ibyi iddo idid idil idio idli idly idol idyl iiii iiio iioi iioo ilio ill- illd illi illo illy iloo iobi ioby iod- iodd iodo ioii ioio iolo iooi iooo libo lidb lidl lido liii lilb lili lill lilo lily lio- liod liyl lldb llll llod lloo lob- lobb lobi lobo loby lodi loid lold loli loll lolo loly loob lood lool loyd lydd lyly lyo- obbo obby obid oboi obol oboy odbo oddd oddi oddy odio odly odoo odyl oido oiii oily oiyl olbo olby oldb oldy olib olid olio olli ollo olly oobi ooby oodi ooid oold oolo oooo oyly ydil yidi yild yili yill ylid ylli yobi yobo yodo yold yoli yoll yolo yoly yood yool yoyo yyyy