-ene -one cccc ccee ccnc ccne ccoc cctc cctt cec- cece ceco cect ceec cen- cene ceno cent cet- cete ceto cnco cnet cntc coce coco coct coen con- conc cone conn cono cont coon coot cotc cote cotn coto cott ctec cten ctne ctot cttn eccc ecce ecco ecct ecne eco- econ ecot ect- ectc ecto eeee eent eeoc eetc eete ence enco enee eneo ennc enne eno- enoc enoe enon ent- ente ento eone eont eotc eoto etcc etco etec etee eten etne etoe eton ette ettn etto nccc nccn ncct ncec ncee ncen ncnc ncoc nctc ncte necc nece neco nect neen neet nene neno nent neo- neoc neon neoo neot net- nete neto nett nnnn nnot nntn noce noco noct non- none nonn nono nont noo- noon nooo noot not- note noto nott ntcc ntto o-eo occc occn occt oce ocee ocet ocon oct- octe octo oec- oecc oeec oen- oeno onc- once onco onct one- onec onee oneo onne onno onon ont- ontc onto oone oont oooo otee oten oto- otoe oton otoo otte otto tccc tcnn tcon tctc teco tect teec teen teet tenc tene tenn teno tent teon tete teto tett tncc toce toco toee toen toet tone tonn tono toon toot totc tote toto tott ttcn tten tteo ttoe tton tttt