bbbb bbdd bbdo bbox bboy bbyo bd-r bdry bobb bobo boby bodb bodo body boob bood boor boox bor- bord boro borr bory boxy boyd boyo brdo brdy brob brod broo bror brox brrr bry- bryd bryo byob byod byrd byyd d-bo dboy dddd ddry do-x dobb doby dod- dodd dodo dody doob dood door dord doro dorr dory doxy doyo drob drod droy dry- dxbr dxby dxdr dxrd dxrr dxrx dxxr dxxx dxyr dydd dyo- dyoo dyor dyr- dyrb dyro dyrx dyxr dyxx dyxy dyyr obbo obby obor obox oboy obro odbo oddd oddy odoo odor odry odyr ooby oooo oord oory orbb orbo orby ordo oro- oror oroy orro orry oryx oxo- oxox oxxo oxy- oxyd rbbb rbbr rob- robb robo roby rodd rodo rody roob rood roor roox roro rory roxo roxy royd rrrr rydy ryob xbox xoro xoxo xoyo xrdb xrod xxxo xxxx xxxy xyr- ybor ybry yobo yodo yood yord yoro yory yoyo yyyy