-ene -one cccc cccf cccp ccee ccfc ccff ccnc ccne ccnf ccnp ccnr ccoc ccpe ccpn ccpp ccpr ccrc ccre ccrf ccrp ccrt cctc cctt cec- cece ceco cecp cect ceec cef- cefc cefn cen- cene ceno cent ceop ceor cepc cepe cepo cepp cepr cept cer- cerc cere cerf cern cero cerp cert cet- cete ceto cetp cfcf cfcn cfco cffr cfnr cfor cfpo cfpr cfre cfrn cfrp cfrt cftc cfte cftr cnco cncp cnep cnet cnrc cnrr cnrt cntc cntf cntr coce coco cocp coct coen coep cofc cofe coff coft con- conc cone conf conn cono cont coof coon coop coot cope copo copp copr copt cor- corc core corf corn coro corp corr cort cotc cote cotn coto cott cpce cpep cper cpff cpft cpnt cpre cprt cptp cptr crcc crce crcr cre- crec cree cren creo crep cret crfc crne croc croe cron croo crop cror crot crpc crrt crtc crtf crtp ctcf ctcp ctec cten ctep ctfc ctfo ctne ctor ctot ctpo ctpp ctrc ctrn ctrp cttn eccc ecce ecco ecct ecef ecfc ecfr ecne eco- econ ecop ecot ecpp ecrc ecrf ecrr ect- ectc ectf ecto eeee eefe eefn eent eeoc eerc eero eetc eete efco efen efeo efet efon efor eft- eftp ence enco enee eneo ener enfp ennc enne eno- enoc enoe enon enp- ent- ente ento entp entr eone eont eore eotc eoto epcc epec epee epen eper epfc epoc epon epor epot eppc eppo eppp epro eprp epte ercc erce ercp erec eren erer eret erfc erft erne erno eroc eroe eron eroo erpe errc erre erro etcc etco etec etee eten eter etfc etfe etne etnr etoe eton etre etro ette ettn etto fccf fccp fcot fcto fece fect feen feer feet fefc fefe feff fefo fene fenn fent feof feon fepc ferc fere fern fero ferr fert fete fetp fetr fett ffcc ffee ffff ffrr fftf fnet foce foco foer fofo fone fono font foof foon foot fopp for- fore forn foro forr fort fote foto fotp fott fp-c fpcc fpct fprf frcc frcn frcp free fren freo frep fret frfc froe fron frop frot ft-c ften fter ftfc ftop ftpe nccc nccf nccn nccp nccr ncct ncec ncee ncef ncen ncep ncer ncfc ncfe ncnc ncoc ncor ncpc ncrc ncre ncrp nctc ncte nctr necc nece neco necr nect neef neen neep neer neet nefe neff nene neno nent neo- neoc neon neoo neot nepc nepe nepr nept nerc nere nerf nero nerr nert net- nete neto nett nfct nfer nfff nfon nftc nfto nnnn nnot nnpr nntn noce noco noct noer non- none nonn nono nont noo- noon nooo noop noor noot nope nor- norc nore norf norn noro norr nort not- note noto nott npcc nppc nprt nptc npte nptn nren nrfc nroc nron nrpc nrpn nrrc ntcc nter ntfc ntfp ntof ntop ntpc ntrc ntto nttr o-eo occc occn occt oce ocee ocef ocet ocfp ocon ocpp ocre ocro ocrr oct- octe octo oec- oecc oeec oen- oeno oere ofcr ofen ofer off- offc offe offo offr ofno ofor ofre oftp onc- once oncf onco onct one- onec onee oneo onep oner onne onno onon onor onpt ont- ontc onto oocr ooer ooff oone oont oooo oore oort ootp opec open opep oper opet opo- opon opor oppo optn opto orce orco ore- orec oren oreo orer orfe orff ornc orne orno oro- oroe orof oron oror orot orpc orpe orro ortc orte orto otee oten otep oter otfc otfp oto- otoe otof oton otoo otor otpp otre otro otte otto pccc pcce pcep pcer pcfc pcnt pcoe pcpn pcpp pcrc pcre pcrf pcte pece peco pecr pect peec peen peep peer peet pefc peff pen- penc pene penn peno pent peon peor pepe pepo per- perc pere perf pern pero perp perr pert pete petn peto petr pett pfce pfet pfff pffr pfft pfte pnec pnet pnon pnot pnpo pnpp pnro pntr poce poco poer poet poff ponc pone pono ponp pont poof poon poop poor poot pop- popc pope popo popp popt porc pore porn poro porr port potc pote potf poto pott ppcc ppen pper pppn pppo pppp pprc pprf pptn pptt prcc prcf prcp pre- prec pree pref pren prep pret prfc prnp pro- proc proe prof pron proo prop prot prtc prtp prtr ptcc pten pter ptop ptrf pttc rccc rcep rcet rcfc rcnr rcon rcpo rcpt rctc recc rece recp recr rect reef reen reep reet refe reff refn refr reft rene renn reno rent reof reop reot repe repo repp repr rept rere rero rert rete reto retr rett rfef rffc rftc rnco rncp rnnt rnot rntp rocc roce roco roen roer roet rofc rofe roff rofo ronc rone rono ront roof roon roop roor root rope ropo rorc rore roro rort rotc rote rotn roto rotr rott rpet rpfc rpoe rpof rpon rppn rptn rrfc rrrr rtcc rtce rtee rtfc rttp tccc tcep tcfc tcnn tcon tcpo tctc teco tecr tect teec teef teen teer teet tefc teff teft tenc tene tenn teno tenp tent teon teor tepe tepp ter- terc tere terf tern tero terp terr tete teto tetr tett tfec tfnp tfot tfpt tftc tftp tncc tnef tnfc toce toco toee toen toer toet toff tofo toft tone tonn tono toof toon toor toot top- tope topf topo topp topt torc tore torf torn toro torp torr tort totc tote toto totr tott tpcp tper tpon tppp tppr tpte tptp tptr trcc tre- trec tree tref tren treo tret trfc trfr trno troc troe tron troo trop trot trpc trpe trpn trpp trtc trte trtr ttcn ttcp tten tteo tter ttfc ttff ttfn ttoe tton ttop tttt