-ene -one cccc cccf cccp cccu ccee ccfc ccff ccnc ccne ccnf ccnp ccnr ccnu ccoc ccpe ccpn ccpp ccpr ccrc ccre ccrf ccrp ccuc ccup cec- cece ceco cecp ceec cef- cefc cefn cen- cene ceno ceop ceor ceou cepc cepe cepo cepp cepr cer- cerc cere cerf cern cero cerp cfcf cfcn cfco cffr cfnr cfor cfpo cfpr cfre cfrn cfrp cfun cnco cncp cnep cnrc cnrr coce coco cocp cocu coen coep cofc cofe coff con- conc cone conf conn cono coof coon coop cope copo copp copr cor- corc core corf corn coro corp corr coue coun coup cour cpce cpcu cpep cper cpff cpre crcc crce crcr cre- crec cree cren creo crep creu crfc crne croc croe cron croo crop cror crpc crue crun crup cucc cuce cucn cuer cufc cuff cufo cune cuno cunp cuon cupe cupo cupp cupr cure curf curn curo curr eccc ecce ecco ecef ecfc ecfr ecne eco- econ ecop ecou ecpp ecrc ecrf ecrr ecru eeee eefe eefn eeoc eerc eero efco efen efeo efon efor ence enco enee eneo ener enfp ennc enne ennu eno- enoc enoe enon enp- enue enuf enur eone eore epcc epec epee epen eper epfc epoc epon epor eppc eppo eppp epro eprp ercc erce ercp erec eren erer erfc erne erno eroc eroe eron eroo erpe errc erre erro eruc erur euer eufc eur- eurc eure euro fccf fccp fcup fece feen feer fefc fefe feff fefo fene fenn feof feon fepc ferc fere fern fero ferr feru ffcc ffee ffff ffrr ffun fnuf foce foco foer fofo fone fono foof foon fopp for- fore forn foro forr foun foup four fp-c fpcc fprf frcc frcn frcp free fren freo frep frfc froe fron frop frou frue frun fuc- fufc fuff fufu fune funf fuor fur- fure furn furo furr n-up nccc nccf nccn nccp nccr nccu ncec ncee ncef ncen ncep ncer ncfc ncfe ncnc ncoc ncor ncpc ncrc ncre ncrp ncue necc nece neco necr neef neen neep neer nefe neff nene neno nenu neo- neoc neon neoo nepc nepe nepr nerc nere nerf nero nerr neru neuc neue neuf neun neuo neur neuu nfcu nfer nfff nfon nnnn nnpr noce noco noer non- none nonn nono nonu noo- noon nooo noop noor nope nor- norc nore norf norn noro norr noun noup nour npcc nppc nren nrfc nroc nron nrpc nrpn nrrc nuce nucu nuee nuer nuff nunc nune nunn nuno nuoc nuon nupe nurc nure nurn nurp nurr nuru o-eo occc occn oce ocee ocef ocfp ocon ocpp ocre ocro ocrr ocur oec- oecc oeec oen- oeno oere oeuf ofcr ofen ofer off- offc offe offo offr offu ofno ofor ofre onc- once oncf onco one- onec onee oneo onep oner onne onno onon onor onpu onue onup onur oocr ooer ooff oone oooo oore opec open opep oper opo- opon opor oppo orce orco ore- orec oren oreo orer orfe orff orfu ornc orne orno oro- oroe orof oron oror orpc orpe orro orup oucc ouen ouer oufc oufe ouff oun- oune oupe our- oure ourn ouro ouu- pccc pcce pcep pcer pcfc pcoe pcpn pcpp pcrc pcre pcrf pcun pece peco pecr peec peen peep peer pefc peff pen- penc pene penn peno penu peon peor peou pepe pepo per- perc pere perf pern pero perp perr peru peun peur pfce pfff pffr pnec pneu pnon pnpo pnpp pnro pnup poce poco poer poff ponc pone pono ponp poof poon poop poor pop- popc pope popo popp porc pore porn poro porr pouf poun poup pour ppcc ppen pper pppn pppo pppp pprc pprf ppru ppur prcc prcf prcp pre- prec pree pref pren prep preu prfc prnp pro- proc proe prof pron proo prop prou prue pruf pruu pu-e puce pueo puer pueu puff punc pune puno punu pupe pupu pur- pure puro purp purr puru puuc rccc rcep rcfc rcnr rcon rcpo recc rece recp recr recu reef reen reep refe reff refn refr refu rene renn reno renu reof reop reou repe repo repp repr repu rere rero reru reue reuf reup reuu rfef rffc rnco rncp rocc roce roco roen roer rofc rofe roff rofo ronc rone rono roof roon roop roor rope ropo rorc rore roro roru roue rouf roun roup rpfc rpoe rpof rpon rppn rrfc rrrr rrun ruce ruen ruer rufc rufe ruff rufo runc rune runf runn runo rupe rupp rurc rure ruro rurp ruru ruun u-rp uccp ucon ucrc ueno ufcu ufer uffe uncc unce uncf unco uncp unec unee unef unen uner unfp unne unno unon unop unpc unrf unro uocc uofo uone uor- uore upen upne upnp upon upor uppc uppe uppp uppu upup ure- urfe urff urne uro- uroo urpo urre urun urup urur uucp uuen uuno uuoc uuuu