-ene -one cccc cccp ccee ccnc ccne ccnp ccnr ccoc ccpe ccpn ccpp ccpr ccrc ccre ccrp cec- cece ceco cecp ceec ceke cen- cene ceno ceop ceor cepc cepe cepo cepp cepr cer- cerc cere cern cero cerp ckck ckco cken cker cknc ckoc ckoo ckor ckpc ckpr ckrc cnco cncp cnep cnrc cnrr coce cock coco cocp coen coep cok- coke coko con- conc cone conk conn cono cook coon coop cope copo copp copr cor- corc core cork corn coro corp corr cpce cpep cper cpre crcc crce crcr cre- crec cree cren creo crep crkc crkp crne croc croe crok cron croo crop cror crpc eccc ecce ecco ecko ecne eco- econ ecop ecpp ecrc ecrr eeee eeke eeoc eerc eero ekco ekek eken eker ekne ekpe ekpo ence enco enee eneo ener enke enkr ennc enne eno- enoc enoe enon enp- eone eore epcc epec epee epen eper epoc epon epor eppc eppo eppp epro eprp ercc erce ercp erec eren erer erke erne erno eroc eroe eron eroo erpe errc erre erro kccc kcck kccr kcec kcee kceo kcep kckc kckk kckn kcko kckr kcno kcnp kcnr kcoe kcon kcor kcpc kcpn kcpo kcpr kcrc kcrn kcro kcrp kcrr keck keco kecr keek keen keep keer kekc keke keko ken- kene kenk kenn keno kenr keok keon kep- kepc kepe kepn ker- kerc kere kerk kern kero kerp kerr kkck kkcn kkco kkcr kken kkkk kkne kknn kkno kkon kkoo kkor kkpc kkpk kkpn kkrc kkre kkrk kkrn kkro kkrr knce knck kncn knco kncr knec knee knek knen kneo knep knkk knnk knnr knoc knoe knok knon knop knor knpc knpr knrk knro kock kocn kocp koen kokc koke kokk kokn koko kokp kokr konc kone konk kono konp kooc kook koon kooo koop koor kope kopn kopp kopr korc kore kork korn koro korr kpcc kpcr kpek kper kpke kpkk kpkr kpnc kpne kpno kpnp kpoc kpoe kpok kpoo kpop kppc kppk kppo kppp kppr kprc kpre kprk kprn kpro kprp kprr krcc krce krcn krco krec kree krek kren kreo krkc krke krkk krkn krko krkr krne krnk krnn krno krnp kroc kroe krok kroo krop kror krpr krrc krre krrk krrn krro krrr nccc nccn nccp nccr ncec ncee ncen ncep ncer ncnc ncoc ncor ncpc ncrc ncre ncrp necc nece neck neco necr neen neep neer neke neko nene neno neo- neoc neon neoo nepc nepe nepr nerc nere nerk nero nerr nkok nkor nnnn nnpr noce nock noco noer noke noko non- none nonn nono noo- nook noon nooo noop noor nope nor- norc nore nork norn noro norr npcc nppc nren nroc nron nrpc nrpn nrrc o-eo occc occn oce ocee ocke ocon ocpp ocre ocro ocrr oec- oecc oeec oen- oeno oere oken oker okko okno okok okon okor okpe okpo okre okro onc- once onco one- onec onee onek oneo onep oner onkp onne onno onon onor oocr ooer oone oooo oore opec open opep oper opo- opon opor oppo orce orco ore- orec orek oren oreo orer orke orko ornc orne orno oro- oroe orok oron oror orpc orpe orro pccc pcce pcep pcer pcoe pcpn pcpp pcrc pcre pece peck peco pecr peec peek peen peep peer peke pekk peko pen- penc pene penk penn peno peon peor pepe pepo per- perc pere perk pern pero perp perr pnec pnkp pnon pnpo pnpp pnro poce pock poco poer poke poko ponc pone ponk pono ponp pook poon poop poor pop- popc pope popo popp porc pore pork porn poro porr ppcc ppen pper pppn pppo pppp pprc prcc prcp pre- prec pree prek pren prep prnp pro- proc proe pron proo prop rccc rcep rcnr rcon rcpo recc rece reck recp recr reek reen reep reke reko rene renk renn reno reop repe repo repp repr rere rero rnco rncp rocc roce rock roco roen roer roke rokk roko rokr ronc rone ronk rono rook roon roop roor rope ropo rorc rore rork roro rpoe rpon rppn rrrr