bbbb bbin bbox bibb bibi bibo biin bin- bini binn bino bint bio- bioi bion biot biox bito bitt bitx bixi bnib bnin bobb bobi bobo boi- boii boin boit boni bonn bono bont boob boon boot boox botb boti botn boto bott btob bttb i-no ibon ibot ibox ibtb iiii iiio iiit iino iioi iioo iitt inbo init inni inno ino- inoi inon inot inox inti intn into iobi ioii ioio ioit ioni ionn iono iooi iooo ioto itin itno itoi iton itoo itto ixxi n-ii nbbo nbti nibi nibo niit nini nino nion nioo nitb niti nito nixi nixt nnit nnnn nnot nntn nobi nobo noib noin noio noit noix non- noni nonn nono nont nonx noo- noob noon nooo noot not- noti noto nott ntto obbo obin obit obix oboi obon obot obox oiii oint oion oiti onit onix onni onno onon ont- onti onto oobi oont oooo ootb otin otit oto- oton otoo otti otto oxi- oxo- oxon oxox oxxo tbit tbox tibi tiit tini tinn tino tint tion titi tito titt tixt tobi tobo tobt toit tonb toni tonn tono toon toot toti toto tott tox- toxi toxo toxt ttbb tton tttt txii xbin xbox xibo xiii xion xito xixi xoxo xxii xxix xxxi xxxo xxxx