-ene -one cccc cccv ccee ccnc ccne ccnr ccoc ccrc ccre ccvo cec- cece ceco ceec ceke cen- cene ceno ceor cer- cerc cere cern cero cevo ckck ckco ckcv cken cker cknc ckoc ckoo ckor ckrc ckvo cnco cnrc cnrr coce cock coco coen cok- coke coko con- conc cone conk conn cono conv cook coon cor- corc core cork corn coro corr cove covo crcc crce crcr cre- crec cree cren creo crkc crne croc croe crok cron croo cror cvcc cven cver cvrr eccc ecce ecco ecko ecne eco- econ ecrc ecrr ecrv eeee eeke eeoc eerc eero eevn ekco ekek eken eker ekne en-v ence enco enee eneo ener enke enkr ennc enne eno- enoc enoe enon eone eore ercc erce erec eren erer erev erke erne erno eroc eroe eron eroo errc erre erro erve even ever evoe evon evoo evre evvk kccc kcck kccr kccv kcec kcee kceo kckc kckk kckn kcko kckr kckv kcno kcnr kcnv kcoe kcon kcor kcrc kcrn kcro kcrr kcrv kcvk kcvo kcvr kcvv keck keco kecr keek keen keer kekc keke keko ken- kene kenk kenn keno kenr keok keon ker- kerc kere kerk kern kero kerr kerv keve kkck kkcn kkco kkcr kken kkkk kkne kknn kkno kkon kkoo kkor kkov kkrc kkre kkrk kkrn kkro kkrr kkrv kkvr kkvv knce knck kncn knco kncr knec knee knek knen kneo knev knkk knnk knnr knoc knoe knok knon knor knrk knro knrv knvn knvo knvr kock kocn koen kokc koke kokk kokn koko kokr konc kone konk kono kooc kook koon kooo koor koov korc kore kork korn koro korr korv kovc kove kovk kovo kovr krcc krce krcn krco krec kree krek kren kreo krev krkc krke krkk krkn krko krkr krkv krne krnk krnn krno krnv kroc kroe krok kroo kror krov krrc krre krrk krrn krro krrr krvc krve krvk krvn krvo krvr krvv kvcc kvce kvck kvco kvcr kvcv kvec kven kver kvnc kvne kvnn kvno kvnr kvoc kvoe kvok kvon kvoo kvor kvov kvrc kvre kvro kvrr kvrv kvvn kvvr kvvv nccc nccn nccr ncec ncee ncen ncer ncnc ncoc ncor ncrc ncre necc nece neck neco necr neen neer neev neke neko nene neno neo- neoc neon neoo nerc nere nerk nero nerr nerv neve nevo nkok nkor nnnn noce nock noco noer noke noko non- none nonn nono noo- nook noon nooo noor noov nor- norc nore nork norn noro norr norv nov- nove novo nren nroc nron nrrc nvcc 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 orve orvr ovee oven over ovo- ovon ovoo ovre rccc rcnr rcon rcvr recc rece reck recr reek reen reev reke reko rene renk renn reno rere rero reve revo rnco rocc roce rock roco roen roer roev roke rokk roko rokr ronc rone ronk rono rook roon roor rorc rore rork roro rove rovo rrrr rv-c rver vcon vecc veck veen veer veke ven- vene venk venn veno veor ver- vere verk vern vero veve vevo vkor voce voer voke vone vonk vonn vooc voor vor- vore voro vovk vreo vrnn vroc vron vver vvvv