-ene -one bbbb bbeb bcbc bccc bcec bcnu bcuc bebb bebe bebo becu beeb been bene benn beno benu beo- beon bnoc bobb bobe bobo bobu boce boco bocu boec boee boen boeo bonc bone bonn bono bonu boob booc booe boon boue boun bubb bube bubo bubu bucc buce buco bucu buen bueu bunb bune bunn buno bunu buon c-bo cbbc cbcc cbce cbcn cbcu cbec cbee ccbc ccbn cccb cccc cccu ccee ccnb ccnc ccne ccnu ccob ccoc ccuc cebu cec- cece ceco ceeb ceec cen- cene ceno ceou cnbc cnco cobb cobe cobo cobu coce coco cocu coen con- conc cone conn cono coob coon coub coue coun cub- cubb cube cucc cuce cucn cune cuno cuon ebbc ebbo ebcc eben ebno eboe ebon eboo ecbc ecbe eccb eccc ecce ecco ecne eco- econ ecou eeee eeoc enb- enbn ence enco enee eneo ennc enne ennu eno- enoc enoe enon enue eone eubc nbbc nbbo nbcc nbco ncbc nccc nccn nccu ncec ncee ncen ncnc ncoc ncue nebb nebe nebn nebo nebu necc nece neco neeb neen nene neno nenu neo- neoc neon neoo neuc neue neun neuo neuu nnnn nobc nobo nobu noce noco non- none nonn nono nonu noo- noob noon nooo noun nubc nube nuce nucu nuee nunc nune nunn nuno nuoc nuon o-eo obbo obec oben oboe obon ocbc occc occn oce ocee ocon oec- oecc oeec oen- oeno onc- once onco one- oneb onec onee oneo onne onno onon onue oobe oone oooo oucc ouen oun- oune ouu- ubbe ubbo uboc ubon ucbc ucon ueno unbe uncc unce unco uneb unec unee unen unne unno unon uocc uone uuen uuno uuoc uuuu