bbbb bbci bbin bcbc bccc bcci bcnu bcuc bibb bibi bibo bicc bici bico biin bin- binc bini binn bino binu bio- bioc bioi bion biou bnib bnin bnoc bobb bobi bobo bobu boco bocu boi- boii boin boiu bonc boni bonn bono bonu boob booc boon boun bubb bubi bubo bubu bucc buci buco bucu buic buin buiu bunb buni bunn buno bunu buon c-bo cbbc cbcc cbcn cbcu ccbc ccbn cccb cccc ccci cccu ccic ccii ccnb ccnc ccni ccnu ccob ccoc ccuc cibc cibi cibo cicc cici cico cicu ciii cin- cinc cini cino ciob cion ciuc cnbc cnci cnco cnib cnic cobb cobi cobo cobu coco cocu coin con- conc coni conn cono coob coon coub coun cub- cubb cubi cucc cuci cucn cui- cuin cuno cuon i-no ibon icbc iccb iccc icci iccn icco iccu icnb icnc icoc icon icub iiii iiio iino iioi iioo iiuc inbo incb inci inco inni inno innu ino- inoi inon inou inui inun iobi ioci ioii ioio ioni ionn iono iooi iooo ioun iucc iuiu iuno n-ii nbbc nbbo nbcc nbci nbco nbic ncbc ncbi nccc ncci nccn nccu ncnc ncoc nibi nibo nicc nici nico nicu niiu nini nino nion nioo niou nnnn nobc nobi nobo nobu noci noco noib noin noio non- noni nonn nono nonu noo- noob noon nooo noun nubc nubi nuci nucu nuin nunc nunn nuno nuoc nuon obbo obin oboi obon ocbc occc occi occn ocin ocon oici oiii oion onc- onco onic onni onno onon oobi oooo oucc ouii ouin oun- ouu- ubbi ubbo ubic ubii uboc ubon ucbc ucci ucin ucio ucon uncc unci unco uni- unic unii unin unio unni unno unon uocc uuni uuno uuoc uuuu