bbbb bbbs bbfn bbin bffs bfsi bibb bibi bibo bibs biff bifi biin biis bin- bini binn bino bins bio- bioi bion bios bis- biso biss bnib bnin bnss bobb bobi bobo bobs boff bofs boi- boii boin bois boni bonn bono bons boob boof boon boos bosi bosn boso boss bsff bsfs bsin bsns bson bsos fbis ffff ffii ffss fibs fiff fifi fifo fiii fini finn fino fins fion fios fisi fiss fobs fofo foin fois fono fons foof foon foos fosb fosi foso foss fsfi fsfo fssf i-no ibfi ibis ibns ibon ibos ibsf ibsn ibss ifbb ifis ifni ifno ifns ifsb ifso iiii iiio iiis iino iioi iioo iios iisi inbo infi info infs inis inni inno inns ino- inoi inon inos inso inss iobi ioii ioio ioni ionn iono ions ioof iooi iooo ioos ioso isbn isin isis isno iso- isof ison isos issf issi isso isss n-ii nbbo nfff nfib nfon nibi nibo nibs niff nini nino nins nion nioo nios nisi niso niss nnnn nnos nnss nobi nobo nobs nofi noib noif noin noio nois non- noni nonn nono nons noo- noob noon nooo noos nos- noss nsbo nsfs nsin nsis nsof nsos nssb nssf nsso nsss obbo obin obis oboi obon obos obsn obss off- offo offs ofno oiii oins oion oios onis onni onno onon onos onso oobi ooff oofs oons oooo ooos oosi osii osin osis osno osoi osoo osos ossb ossi osso s-ib s-ii s-os sbbs sbsi sfio sfnb sfos sfss sibi sibo sibs siff sifo sini sinn sino sins sion sios sisi siss snib snns snob snoo snos sobo sobs sofi sofo soif soin sois son- soni sono sons soof soon soos sosi soso soss ssbn ssin ssis ssns sssb sssf sssi ssss