-ene -one cccc ccee ccnc ccne ccnr ccoc ccrc ccre cec- cece ceco ceec ceke cen- cene ceno ceor cer- cerc cere cern cero ckck ckco cken cker cknc ckoc ckoo ckor ckrc cnco cnrc cnrr coce cock coco coen cok- coke coko con- conc cone conk conn cono cook coon cor- corc core cork corn coro corr crcc crce crcr cre- crec cree cren creo crkc crne croc croe crok cron croo cror eccc ecce ecco ecko ecne eco- econ ecrc ecrr eeee eeke eeoc eerc eero ekco ekek eken eker ekne ence enco enee eneo ener enke enkr ennc enne eno- enoc enoe enon eone eore ercc erce erec eren erer erke erne erno eroc eroe eron eroo errc erre erro kccc kcck kccr kcec kcee kceo kckc kckk kckn kcko kckr kcno kcnr kcoe kcon kcor kcrc kcrn kcro kcrr keck keco kecr keek keen keer kekc keke keko ken- kene kenk kenn keno kenr keok keon ker- kerc kere kerk kern kero kerr kkck kkcn kkco kkcr kken kkkk kkne kknn kkno kkon kkoo kkor kkrc kkre kkrk kkrn kkro kkrr knce knck kncn knco kncr knec knee knek knen kneo knkk knnk knnr knoc knoe knok knon knor knrk knro kock kocn koen kokc koke kokk kokn koko kokr konc kone konk kono kooc kook koon kooo koor korc kore kork korn koro korr krcc krce krcn krco krec kree krek kren kreo krkc krke krkk krkn krko krkr krne krnk krnn krno kroc kroe krok kroo kror krrc krre krrk krrn krro krrr nccc nccn nccr ncec ncee ncen ncer ncnc ncoc ncor ncrc ncre necc nece neck neco necr neen neer neke neko nene neno neo- neoc neon neoo nerc nere nerk nero nerr nkok nkor nnnn noce nock noco noer noke noko non- none nonn nono noo- nook noon nooo noor nor- norc nore nork norn noro norr nren nroc nron nrrc o-eo occc occn oce ocee ocke ocon ocre ocro ocrr oec- oecc oeec oen- oeno oere oken oker okko okno okok okon okor okre okro onc- once onco one- onec onee onek oneo oner onne onno onon onor oocr ooer oone oooo oore orce orco ore- orec orek oren oreo orer orke orko ornc orne orno oro- oroe orok oron oror orro rccc rcnr rcon recc rece reck recr reek reen reke reko rene renk renn reno rere rero rnco rocc roce rock roco roen roer roke rokk roko rokr ronc rone ronk rono rook roon roor rorc rore rork roro rrrr