bbbb bbbs bbin bibb bibi bibo bibs biin biis bin- bini binn bino bins binz bio- bioi bion bios bis- biso biss bizz bnib bnin bnss bobb bobi bobo bobs boi- boii boin bois boni bonn bono bons boob boon boos booz bosi bosn boso boss bozi bozo bsin bsns bson bsos bzzz i-no ibis ibns ibon ibos ibsn ibss iiii iiio iiis iino iioi iioo iios iisi inbo inis inni inno inns ino- inoi inon inos inoz inso inss iobi ioii ioio ioni ionn iono ions iooi iooo ioos ioso isbn isin isis isno iso- ison isos issi isso isss izon izso izzo 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 noo- noob noon nooo noos nos- noss nozi nsbo nsin nsis nsos nssb nsso nsss obbo obin obis oboi obon obos obsn obss oiii oins oion oios onis onni onno onon onos onoz onso onzo oobi oons oooo ooos oosi oozi osii osin osis osno osoi osoo osos ossb ossi osso ozon s-ib s-ii s-os sbbs sbsi sibi sibo sibs sini sinn sino sins sion sios sisi siss sizz snib snns snob snoo snos sobo sobs soin sois son- soni sono sons soon soos sosi soso soss soz- sozi ssbn ssin ssis ssns sssb sssi ssss szin szis szob szss zibo zinn zino zins zion zisi zizi zizz zobo zoio zois zon- zoni zons zoo- zoon zoos zoso zoss zozo zsss zzzs zzzz