bbbb bbci bbin bcbc bccc bcci bibb bibi bibo bicc bici bico biin bin- binc bini binn bino bio- bioc bioi bion bnib bnin bnoc bobb bobi bobo boco boi- boii boin bonc boni bonn bono boob booc boon c-bo cbbc cbcc cbcn ccbc ccbn cccb cccc ccci ccic ccii ccnb ccnc ccni ccob ccoc cibc cibi cibo cicc cici cico ciii cin- cinc cini cino ciob cion cnbc cnci cnco cnib cnic cobb cobi cobo coco coin con- conc coni conn cono coob coon i-no ibon icbc iccb iccc icci iccn icco icnb icnc icoc icon iiii iiio iino iioi iioo inbo incb inci inco inni inno ino- inoi inon iobi ioci ioii ioio ioni ionn iono iooi iooo n-ii nbbc nbbo nbcc nbci nbco nbic ncbc ncbi nccc ncci nccn ncnc ncoc nibi nibo nicc nici nico nini nino nion nioo nnnn nobc nobi nobo noci noco noib noin noio non- noni nonn nono noo- noob noon nooo obbo obin oboi obon ocbc occc occi occn ocin ocon oici oiii oion onc- onco onic onni onno onon oobi oooo