bbbb bbbs bbfn bbin bblb bbls bffl bffs bfsi bibb bibi bibl bibo bibs biff bifi biin biis bili bill bilo bils bin- bini binn bino bins bio- bioi biol bion bios bis- bisl biso biss blin blio blis blls blni blno blob blon bloo blss bnib bnin bnss bobb bobi bobo bobs boff bofs boi- boii boil boin bois boli boll boln bolo bols boni bonn bono bons boob boof bool boon boos bosi bosn boso boss bsff bsfs bsin bsns bson bsos fbis ffff ffii ffss fibs fiff fifi fifo fiii fiil fili fill filn filo fils fini finn fino fins fion fios fisi fiss flii flin flis flnb flob flon floo flos fobs fofo foil foin fois foli foll folo fols fono fons foof fool foon foos fosb fosi foso foss fsfi fsfo fsln fssf i-no ibfi ibis ibns ibon ibos ibsf ibsn ibss ifbb ifil ifis ifni ifno ifns ifsb ifso iiii iiio iiis iino iioi iioo iios iisi ilin ilio ilis ill- illi illo ills ilni ilno iloo ilos inbo infi infl info infs inis inni inno inns ino- inoi inol inon inos inso inss iobi ioii ioio iolo ioni ionn iono ions ioof iooi iooo ioos ioso isbl isbn isil isin isis isls isno iso- isof isol ison isos issf issi isso isss lbos libo libs liff lifl lifo liii liin liis lilb lili lill lilo lils linn lino lins lio- lion lios lisi liso liss llbs llll lloo lnfs lnso lob- lobb lobi lobo lobs loff lofi lofn loif loin lois loli loll lolo lols loni lono lons loob loof lool loon loos losi loso loss lsof lson lsso n-ii nbbo nbfl nfff nfib nfon nibi nibo nibs niff nili nill nilo nils nini ninl nino nins nion nioo nios nisi nisl niso niss nlls nnls nnnn nnos nnsl nnss nobi nobo nobs nofi noib noif noil noin noio nois nolf noli noll nolo nols non- noni nonn nono nons noo- noob nool noon nooo noos nos- noss nsbo nsfs nsin nsis nsls nsof nsos nssb nssf nsso nsss obbo obin obis obls oboi obol obon obos obsn obss off- offo offs ofno oiii oils oins oion oios olbo olfs olib olin olio olis olli ollo olof olon olos olsi onil onis onlf onni onno onon onos onso oobi ooff oofs oolo oons oooo ooos oosi osii osin osis osli oslo osno osoi osoo osos ossb ossi osso s-ib s-ii s-os sbbs sbsi sfio sfls sfnb sfos sfss sibi sibo sibs siff sifl sifo sil- silf sili sill silo sils sini sinn sino sins siol sion sios sisi siss sl-i slib slln slob slon sloo slos snib snlf snns snob snoo snos sobo sobs sofi sofo soif soil soin sois solf soli soll soln solo sols son- soni sono sons soof sool soon soos sosi soso soss ssbn ssfl ssin ssis ssns sssb sssf sssi ssss