-ene -one cccc cccp ccee cche cchp ccnc ccne ccnp ccoc ccpe ccpn ccpp cec- cece ceco cecp ceec cen- cene ceno ceop cepc cepe ceph cepo cepp chce chch chcp chec chee cheh chen chep chnc chno choc choh chon choo chop chpp cnco cncp cnep cnoh coce coch coco cocp coen coep cohn coho con- conc cone conn cono cooh coon coop cope coph copo copp cpce cpep eccc ecce ecco eche echo ecne eco- econ ecop ecpp eeee eeoc ehcc eheh ehen ence ench enco enee eneo ennc enne eno- enoc enoe enon enp- eone epcc epch epec epee epen eph- epoc epon eppc eppo eppp hccc hcch hcpc hech heep hehe hehn heho hene henh henn heno hepc hepe hepp hhhh hhpc hnce hoce hoch hocn hoen hohe hohn hoho hone hono hooe hoon hoop hope hopo hopp hpcc hppe nccc nccn nccp ncec ncee ncen ncep nchc ncnc ncoc ncpc necc nece nech neco neen neep nehe nene nenh neno neo- neoc neon neoo nepc nepe neph nhcc nhnn nhon nnnn noce noch noco nohn noho non- none nonn nono noo- noon nooo noop nope noph npcc nppc o-eo occc occn oce ocee oche ocon ocpp oec- oecc oeec oen- oeno ohcc ohee ohen ohho ohne ohno ohoh onc- once onco one- onec onee oneh oneo onep onne onno onon ooho oone oooh oooo opec open opep opo- opon oppo pccc pcce pcep pchp pcoe pcpn pcpp pece pech peco peec peen peep pehe peho pen- penc pene penh penn peno peon pepe pepo phcc phe- phen phno phoh phon phoo pnec pnon pnpo pnpp poce poch poco ponc pone pono ponp pooh poon poop pop- popc pope popo popp ppcc ppen pppn pppo pppp