-ene -one cccc cccp cccv ccee cche cchp cchr ccnc ccne ccnp ccnr ccoc ccpe ccpn ccpp ccpr ccrc ccre ccrp ccvo cec- cece ceco cecp ceec cen- cene ceno ceop ceor cepc cepe ceph cepo cepp cepr cer- cerc cere cern cero cerp cevo chce chch chcp chec chee cheh chen chep cher chev chnc chno chnr choc choh chon choo chop chor chov chpp chpr chrc chrn chro chrp chrr chvo cnco cncp cnep cnoh cnrc cnrr coce coch coco cocp coen coep cohn coho con- conc cone conn cono conv cooh coon coop cope coph copo copp copr cor- corc core corn coro corp corr cove covo cpce cpep cper cpre cpvc crcc crce crcr cre- crec cree creh cren creo crep crne croc croe croh cron croo crop cror crpc cvcc cven cver cvrr eccc ecce ecco eche echo ecne eco- econ ecop ecpp ecrc ecrr ecrv eeee eeoc eerc eero eevn ehcc eheh ehen eher ehre en-v ence ench enco enee eneo ener ennc enne eno- enoc enoe enon enp- eone eore epcc epch epec epee epen eper eph- epoc epon epor eppc eppo eppp epro eprp ercc erce erch ercp erec eren erer erev erhc erne erno eroc eroe eron eroo erpe errc erre erro erve even ever evoe evon evoo evop evre hccc hcch hcpc hcrp hech heep heer hehe hehn heho hene henh henn heno heor hepc hepe hepp herc here hern hero herp herr heve hevn hhhh hhpc hnce hoce hoch hocn hocr hoen hoer hohe hohn hoho hone hono hooe hoon hoop hoor hope hopo hopp horc hore horn horo horr hove hpcc hppe hree hron hrpc hrpp hrrc hvcc nccc nccn nccp nccr ncec ncee ncen ncep ncer nchc ncnc ncoc ncor ncpc ncrc ncre ncrp necc nece nech neco necr neen neep neer neev nehe nene nenh neno neo- neoc neon neoo nepc nepe neph nepr nerc nere nero nerr nerv neve nevo nhcc nhnn nhon nhrc nhrp nnnn nnpr noce noch noco noer nohn noho non- none nonn nono noo- noon nooo noop noor noov nope noph nor- norc nore norn noro norr norv nov- nove novo npcc npov nppc nren nroc nron nrpc nrpn nrrc nvcc o-eo occc occn oce ocee oche ocon ocpp ocre ocro ocrr oec- oecc oeec oen- oeno oere oevp ohcc ohee ohen oher ohho ohne ohno ohoh ohre ohrn onc- once onco one- onec onee oneh oneo onep oner onne onno onon onor oocr ooer ooho oone oooh oooo oore opec open opep oper opo- opon opor oppo orce orch orco ore- orec oreh oren oreo orer orhe ornc orne orno oro- oroe oron oror orpc orpe orph orro orve orvr ovee oven over ovo- ovon ovoo ovpp ovre pccc pcce pcep pcer pchp pcoe pcpn pcpp pcrc pcre pece pech peco pecr peec peen peep peer peev pehe peho pehr pen- penc pene penh penn peno peon peor pepe pepo per- perc pere perh pern pero perp perr perv phcc phe- phen phno phoh phon phoo phrr pnec pnon pnpo pnpp pnro poce poch poco poer ponc pone pono ponp pooh poon poop poor pop- popc pope popo popp porc pore porn poro porr povo ppcc ppen pper pppn pppo pppp pprc prcc prcp pre- prec pree pren prep prev prnp pro- proc proe pron proo prop prov pvco rccc rcep rcnr rcon rcpo rcvr recc rece rech recp recr reen reep reev rehe rehn rene renn reno reop repe repo repp repr rere rero reve revo revp rhce rhcp rhee rhen rheo rhoc rhoh rhon rnco rncp rnpv rocc roce roch roco roen roer roev rohe rohn rohr ronc rone rono roon roop roor rope ropo rorc rore roro rove rovo rpho rpoe rpon rppn rrrr rv-c rver rvvh vche vcon vecc vech veen veep veer veho ven- vene venn veno veoh veor vepe vepr ver- vere vern vero veve vevo vhhh voce voer voho vone vonn vooc voor vor- vore voro vpon vpro vreo vrhe vrnn vroc vron vrpn vver vvvv