bbbb bbin bbox bibb bibi bibo biin bin- bini binn bino bint bio- bioi bion biot biox bito bitt bitx bivi bixi bnib bnin bobb bobi bobo boi- boii boin boit boni bonn bono bont boob boon boot boox botb boti botn boto bott bovi bovo btob bttb btvi 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 invt iobi ioii ioio ioit ioni ionn iono iooi iooo ioto itin itno itoi iton itoo itto ivbv ivin ivon ixxi n-ii n-tv nbbo nbti nibi nibo niit nini nino nion nioo nitb niti nito nivo nixi nixt nnit nnnn nnot nntn nnvt nobi nobo noib noin noio noit noix non- noni nonn nono nont nonx noo- noob noon nooo noot noov not- noti noto nott notv nov- novi novo ntto nttv nvtv nxtv obbo obin obit obix oboi obon obot obox obvi oiii oint oion oiti onit onix onni onno onon ont- onti onto ontv oobi oont oooo ootb otin otit oto- oton otoo otov otti otto ovi- ovni ovo- ovon ovoo ovot oxi- oxo- oxon oxox oxxo tbit tbox tbvi tibi tiit tini tinn tino tint tion titi tito titt tivi tivo tixt tobi tobo tobt toit tonb toni tonn tono toon toot toti toto tott tovo tox- toxi toxo toxt ttbb tton tttt tvbn tvnb tvni tvon tvtv txii viii vini vino vint vion viti vito vitt vivi vivo vixx vnto voin voio voit voix voni vonn vont voot voto voxx vt-i vt-x vvob vvvv xbin xbox xibo xiii xion xito xixi xoxo xvii xxii xxiv xxix xxvi xxxi xxxo xxxv xxxx