-ene -one cccc cccv ccee ccnc ccne ccoc ccvo cec- cece ceco ceec ceke cen- cene ceno cevo ckck ckco ckcv cken cknc ckoc ckoo ckvo cnco coce cock coco coen cok- coke coko con- conc cone conk conn cono conv cook coon cove covo cvcc cven eccc ecce ecco ecko ecne eco- econ eeee eeke eeoc eevn ekco ekek eken ekne en-v ence enco enee eneo enke ennc enne eno- enoc enoe enon eone even evoe evon evoo evvk kccc kcck kccv kcec kcee kceo kckc kckk kckn kcko kckv kcno kcnv kcoe kcon kcvk kcvo kcvv keck keco keek keen kekc keke keko ken- kene kenk kenn keno keok keon keve kkck kkcn kkco kken kkkk kkne kknn kkno kkon kkoo kkov kkvv knce knck kncn knco knec knee knek knen kneo knev knkk knnk knoc knoe knok knon knvn knvo kock kocn koen kokc koke kokk kokn koko konc kone konk kono kooc kook koon kooo koov kovc kove kovk kovo kvcc kvce kvck kvco kvcv kvec kven kvnc kvne kvnn kvno kvoc kvoe kvok kvon kvoo kvov kvvn kvvv nccc nccn ncec ncee ncen ncnc ncoc necc nece neck neco neen neev neke neko nene neno neo- neoc neon neoo neve nevo nkok nnnn noce nock noco noke noko non- none nonn nono noo- nook noon nooo noov nov- nove novo nvcc o-eo occc occn oce ocee ocke ocon oec- oecc oeec oen- oeno oken okko okno okok okon onc- once onco one- onec onee onek oneo onne onno onon oone oooo ovee oven ovo- ovon ovoo vcon vecc veck veen veke ven- vene venk venn veno veve vevo voce voke vone vonk vonn vooc vovk vvvv