bbbb bbci bbin bcbc bccc bcci bcnu bcuc bcvo bibb bibi bibo bicc bici bico biin bin- binc bini binn bino binu bio- bioc bioi bion biou bivi bnib bnin bnoc bobb bobi bobo bobu boco bocu boi- boii boin boiu bonc boni bonn bono bonu boob booc boon boun bovi bovo bubb bubi bubo bubu bucc buci buco bucu buic buin buiu bunb buni bunn buno bunu buon c-bo cbbc cbcc cbcn cbcu cbvb cbvn ccbc ccbn cccb cccc ccci cccu cccv ccic ccii cciv ccnb ccnc ccni ccnu ccob ccoc ccuc ccvi ccvo cibc cibi cibo cicc cici cico cicu ciii cin- cinc cini cino cinv ciob cion ciuc civc civo cnbc cnci cnco cnib cnic cobb cobi cobo cobu coco cocu coin con- conc coni conn cono conv coob coon coub coun covo cub- cubb cubi cucc cuci cucn cui- cuin cuno cuon cvcc cvii 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 iucv iuiu iuno ivbv ivic ivin ivon 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 nivo nnnn nobc nobi nobo nobu noci noco noib noin noio non- noni nonn nono nonu noo- noob noon nooo noov noun nov- novi novo nubc nubi nuci nucu nuin nunc nunn nuno nuoc nuon nuvo nvcc obbo obin oboi obon obvi ocbc occc occi occn ocin ocon oici oiii oion onc- onco onic onni onno onon oobi oooo oucc ouii ouin oun- ouu- ovi- ovni ovo- ovon ovoo ubbi ubbo ubic ubii uboc ubon ucbc ucci ucin ucio ucon uncc unci unco uni- unic unii unin unio univ unni unno unon unov uocc uovo uuni uuno uuoc uuuu uv-b uv-c uvic uvvu vbcc vcbi vcci vcon vic- vici vico viii vinc vini vino vinu vion vivi vivo voic voin voio voni vonn vooc voun vuco vuno vvob vvvv