bbbb bbdd bbdo bd-j bd-r bdii bibb bibi bibo bidi bido bidr biji bio- bioi birb bird biri biro birr bobb bobi bobo bodb bodi bodo boi- boid boii bojd boji bojo boob bood boor bor- bord bori borj boro borr brdo brid brio brob brod broo bror brrr d-bo dddd dibb dibo didi didj dido diii dijo dior dird dirr dobb dobi dod- dodd dodi dodo doid doji dojo doob dood door dord dori doro dorr drib drob drod ibdo ibid ibrd ibri ibro iddo idid idio idir idro iiii iiio iioi iioo ijdb ijji iobi iod- iodd iodo ioii ioio iooi iooo iori irdo iri- irid irio irob irod irri j-ro jbob jibb jibi jidi jido jiji jird jiri jiro jobo jodi jodo joio joji jojo joor joro jrbr obbo obid oboi obor obri obro odbo oddd oddi odio odir odoo odor oido oiii oobi oodi ooid ooij ooji oooo oord orbb orbi orbo ordo ori- orid orio orji oro- oror orri orro rbbb rbbr rdio rib- ribo ridd ridi rido riji rijo riri rjdj rob- robb robi robo rodd rodi rodo roid roio roir roji rojo roob rood rooi roor rori roro rrrr