-ene -one cccc cccf ccee ccfc ccff ccnc ccne ccnf ccoc cec- cece ceco ceec cef- cefc cefn ceke cen- cene ceno cfcf cfcn cfco ckck ckco cken cknc ckoc ckoo cnco coce cock coco coen cofc cofe coff cok- coke coko con- conc cone conf conk conn cono coof cook coon eccc ecce ecco ecef ecfc ecko ecne eco- econ eeee eefe eefn eeke eeoc efco efen efeo efke efon ekco ekek eken ekfc ekne ence enco enee eneo enke ennc enne eno- enoc enoe enon eone f--k fccf fece feck feek feen fefc fefe feff fefo feke feko fene fenk fenn feof feon ffcc ffee ffff foce fock foco fofo foke fone fono foof fook foon kccc kcck kcec kcee kceo kcfc kcfn kcfo kckc kckf kckk kckn kcko kcno kcoe kcof kcon keck keco keef keek keen kefc keff kekc keke keko ken- kene kenk kenn keno keok keon kfcf kfco kfff kffk kffn kfnc kfnf kfnk kfnn kfno kfok kfon kfoo kkck kkcn kkco kken kkfn kkkk kkne kknn kkno kkon kkoo knce knck kncn knco knec knee knef knek knen kneo knfo knkk knnk knoc knoe knok knon kocf kock kocn koen kofc kofe koff kofk kofo kokc koke kokf kokk kokn koko konc kone konk kono kooc kook koon kooo nccc nccf nccn ncec ncee ncef ncen ncfc ncfe ncnc ncoc necc nece neck neco neef neen nefe neff neke neko nene neno neo- neoc neon neoo nfff nfon nkfc nkok nnnn noce nock noco noke noko non- none nonn nono noo- nook noon nooo o-eo occc occn oce ocee ocef ocke ocon oec- oecc oeec oen- oeno ofek ofen off- offc offe offo ofno oken okko okno okok okon onc- once oncf onco one- onec onee onek oneo onne onno onon ooff oone oooo