bbbb bbbs bbin bbws bibb bibi bibo bibs biin biis bin- bini binn bino bins bio- bioi bion bios bis- biso biss biw- bnib bnin bnss bobb bobi bobo bobs bobw boi- boii boin bois boni bonn bono bons boob boon boos boow bosi bosn boso boss bowi bown bows bsin bsns bson bsos bwin i-no ibis ibns ibon ibos ibsn ibss iiii iiio iiis iino iioi iioo iios iisi iiwi inbo inis inni inno inns ino- inoi inon inos inow inso inss inw- inwi iobi ioii ioio ioni ionn iono ions iooi iooo ioos ioso iown isbn isin isis isno iso- ison isos issi isso isss iswn iwin iwis iwiw iwno iwon n-ii nbbo nibi nibo nibs nini nino nins nion nioo nios nisi niso niss nnnn nnos nnss nobi nobo nobs noib noin noio nois non- noni nonn nono nons nonw noo- noob noon nooo noos nos- noss nowi nown nows nsbo nsin nsis nsos nssb nsso nsss nwbn nwbw nwss obbo obin obis oboi obon obos obsn obss oiii oins oion oios onis onni onno onon onos onso oobi oons oooo ooos oosi osii osin osis osno osoi osoo osos osow ossb ossi osso owni owns owow s-ib s-ii s-os sbbs sbsi sibi sibo sibs sini sinn sino sins sion sios sisi siss siwi snib sniw snns snob snoo snos snow sobo sobs soin sois son- soni sono sons soon soos sosi soso soss sowi sown sows ssbn ssin ssis ssns sssb sssi ssss ssws swbs swbw swis swob swon swoo swow swss wbbb wbbi wbbn wbbo wbbs wbbw wbib wbin wbio wbis wbiw wbnb wbns wbnw wbob wboi wbon wbos wbow wbsb wbss wbsw wbwb wbwi wbwn wbwo wibb wibi wibn wibs wibw wiii wiin wiis winb wini winn wino wins winw wiob wioi wion wioo wios wisn wiso wiss wisw wiwi wiwn wnbb wnbi wnbn wnbs wnbw wnib wnin wnio wnis wniw wnns wnnw wnob wnoi wnoo wnos wnow wnsb wnsn wnss wnsw wnwi wnwn wnws wnww wobb wobn wobo woio wois wonb wonn wons wonw woob woon woos woow wosn woso woss wosw wowb wowi wown wowo wows woww wsbb wsbi wsbs wsbw wsib wsis wsni wsnn wsno wsnw wsob wson wsoo wsos wssi wsss wssw wswb wswi wswn wsws wsww wwbb wwbn wwib wwii wwin wwio wwis wwnb wwnn wwno wwns wwnw wwon wwos wwow wwsb wwsi wwsn wwss wwwi wwwn wwws wwww