-ene -one cccc cccu ccee ccnc ccne ccnu ccoc ccuc cec- cece ceco ceec cen- cene ceno ceou cnco coce coco cocu coen con- conc cone conn cono coon coue coun cucc cuce cucn cune cuno cuon eccc ecce ecco ecne eco- econ ecou eeee eeoc ence enco enee eneo ennc enne ennu eno- enoc enoe enon enue eone nccc nccn nccu ncec ncee ncen ncnc ncoc ncue necc nece neco neen nene neno nenu neo- neoc neon neoo neuc neue neun neuo neuu nnnn noce noco non- none nonn nono nonu noo- noon nooo noun nuce nucu nuee nunc nune nunn nuno nuoc nuon o-eo occc occn oce ocee ocon oec- oecc oeec oen- oeno onc- once onco one- onec onee oneo onne onno onon onue oone oooo oucc ouen oun- oune ouu- ucon ueno uncc unce unco unec unee unen unne unno unon uocc uone uuen uuno uuoc uuuu