-ene -one cccc cccf cccp ccee ccfc ccff cche cchp cchr ccnc ccne ccnf ccnp ccnr ccoc ccpe ccpn ccpp ccpr ccrc ccre ccrf ccrp cec- cece ceco cecp ceec cef- cefc cefn cen- cene ceno ceop ceor cepc cepe ceph cepo cepp cepr cer- cerc cere cerf cern cero cerp cfcf cfcn cfco cffr cfnr cfor cfpo cfpr cfre cfrn cfrp chce chch chcp chec chee chef cheh chen chep cher chfc chfr chnc chno chnr choc choh chon choo chop chor chpf chpp chpr chrc chrf chrn chro chrp chrr cnco cncp cnep cnoh cnrc cnrr coce coch coco cocp coen coep cofc cofe coff cohn coho con- conc cone conf conn cono coof cooh coon coop cope coph copo copp copr cor- corc core corf corn coro corp corr cpce cpep cper cpff cpre crcc crce crcr cre- crec cree creh cren creo crep crfc crne croc croe croh cron croo crop cror crpc eccc ecce ecco ecef ecfc ecfr eche echo ecne eco- econ ecop ecpp ecrc ecrf ecrr eeee eefe eefn eeoc eerc eero efco efen efeo efon efor ehcc eheh ehen eher ehre ence ench enco enee eneo ener enfp ennc enne eno- enoc enoe enon enp- eone eore epcc epch epec epee epen eper epfc eph- epoc epon epor eppc eppo eppp epro eprp ercc erce erch ercp erec eren erer erfc erhc erne erno eroc eroe eron eroo erpe errc erre erro fccf fcch fccp fece fech feen feer fefc fefe feff fefo fehr fene fenn feof feoh feon fepc ferc fere fern fero ferr ffcc ffee ffff ffrr foce foch foco foer fofo fohn fohr fone fono foof foon fopp for- fore forn foro forr fp-c fpcc fprf frcc frcn frcp free fren freo frep frfc froe froh fron frop hccc hcch hcfc hcpc hcrp hech heef heep heer hefe hehe hehn heho hene henh henn heno heor hepc hepe hepp herc here hern hero herp herr hfce hhhh hhof hhpc hnce hoce hoch hocn hocr hoen hoer hofe hoff hohe hohn hoho hone hono hooe hoof hoon hoop hoor hope hopf hopo hopp horc hore horn horo horr hpcc hpfc hppe hree hrfc hron hrpc hrpp hrrc nccc nccf nccn nccp nccr ncec ncee ncef ncen ncep ncer ncfc ncfe nchc ncnc ncoc ncor ncpc ncrc ncre ncrp necc nece nech neco necr neef neen neep neer nefe neff nefh nehe nene nenh neno neo- neoc neon neoo nepc nepe neph nepr nerc nere nerf nero nerr nfer nfff nfon nhcc nhnn nhon nhrc nhrp nnnn nnpr noce noch noco noer nohn noho non- none nonn nono noo- noon nooo noop noor nope noph nor- norc nore norf norn noro norr npcc nppc nren nrfc nroc nron nrpc nrpn nrrc o-eo occc occn oce ocee ocef ocfp oche ocon ocpp ocre ocro ocrr oec- oecc oeec oen- oeno oere ofcr ofen ofer off- offc offe offh offo offr ofno ofor ofre ohcc ohee ohen oher ohho ohne ohno ohoh ohre ohrn onc- once oncf onco one- onec onee oneh oneo onep oner onne onno onon onor oocr ooer ooff ooho oone oooh oooo oore opec open opep oper opo- opon opor oppo orce orch orco ore- orec oreh oren oreo orer orfe orff orhe ornc orne orno oro- oroe orof oron oror orpc orpe orph orro pccc pcce pcep pcer pcfc pchp pcoe pcpn pcpp pcrc pcre pcrf pece pech peco pecr peec peen peep peer pefc peff pehe peho pehr pen- penc pene penh penn peno peon peor pepe pepo per- perc pere perf perh pern pero perp perr pfce pfff pffr phcc phe- phen phno phoh phon phoo phrr pnec pnon pnpo pnpp pnro poce poch poco poer poff ponc pone pono ponp poof pooh poon poop poor pop- popc pope popo popp porc pore porn poro porr ppcc ppen pper pppn pppo pppp pprc pprf prcc prcf prcp pre- prec pree pref pren prep prfc prnp pro- proc proe prof pron proo prop rccc rcep rcfc rcnr rcon rcpo recc rece rech recp recr reef reen reep refe reff refn refr rehe rehn rene renn reno reof reop repe repo repp repr rere rero rfef rffc rhce rhcp rhee rhen rheo rhoc rhoh rhon rnco rncp rocc roce roch roco roen roer rofc rofe roff rofo rohe rohn rohr ronc rone rono roof roon roop roor rope ropo rorc rore roro rpfc rpho rpoe rpof rpon rppn rrfc rrrr