bbbb bbin bibb bibi bibo biin bin- bini binn bino bint bio- bioi bion biot bipp bito bitt bnib bnin bnpp bobb bobi bobo boi- boii boin boit boni bonn bono bont boob boon boop boot bopp botb boti botn boto bott bpot bpti btbp btob bttb i-no ibon ibot ibtb iiii iiio iiit iino iioi iioo iiop iitt inbo init inni inno ino- inoi inon inot inp- inpi inpp inpt inti intn into intp iobi ioii ioio ioit ioni ionn iono iooi iooo ioto ipin ipop ippo ipto itin itno itoi iton itoo itto n-ii nbbo nbpp nbti nibi nibo niip niit nini nino nion nioo nipt nitb niti nito nnit nnnn nnot nnpi nntn nobi nobo noib noin noio noit non- noni nonn nono nont noo- noob noon nooo noop noot not- noti noto nott npin nptn ntop ntto obbo obin obit oboi obon obot oiii oint oion oiti onit onni onno onon onpt ont- onti onto oobi oont oooo ootb ootp opii opin opio opit opo- opon oppi oppo opti optn opto otin otit oto- oton otoo otpp otti otto pibb pibi piip pini pinn pino pinp pint piob pion piot pipi pipo pipp piti pito pitt pnin pnon pnot pnpo pnpp pobo poin poio poni pono ponp pont poon poop poot pop- popi popo popp popt poti poto pott ppib pppn pppo pppp pptn pptt ptop tbit tbtp tibi tiit tini tinn tino tint tion tiop tip- tipi tipo tipp tipt titi tito titp titt tobi tobo tobt toit tonb toni tonn tono toon toot top- topi topo topp topt toti toto tott tpon tppp tptp ttbb tton ttop tttt