-ene -one cccc cccp ccee ccgc ccnc ccne ccnp ccoc ccpe ccpn ccpp cec- cece ceco cecp ceec cege cego cen- cene ceng ceno ceop cepc cepe cepo cepp cgcc cgcg cnco cncp cnep coce coco cocp coen coep cogo con- conc cone cong conn cono coon coop cope copg copo copp cpce cpep eccc ecce ecco ecne eco- ecog econ ecop ecpg ecpp eeee eeng eeoc egcc egcg egec egee egge eggo eggp egne ego- egon egpe egpn egpo ence enco enee eneg eneo enge engg engo ennc enne eno- enoc enoe enon enp- eone epcc epec epee epen epoc epon eppc eppo eppp gc-c gccc gcpc gece geen geep gege gegg gego gen- genc gene geng genn geno geo- geog geon gepe gggg ggpo gncc gngc gnoo gnpc goce goen gogo gon- gone gong gonn gono goog goon goop gopc gope gopo gpgp nccc nccn nccp ncec ncee ncen ncep ncnc ncoc ncpc necc nece neco neen neep nege nego negp nene neng neno neo- neoc neon neoo nepc nepe ngen ngon ngpc nngn nnnn noce noco nogg nogo non- none nong nonn nono noo- noon nooo noop nope npcc nppc o-eo occc occn oce ocee ocon ocpp oec- oecc oeec oen- oeno ogee ogen ogge ogog ogon onc- once onco one- onec onee oneg oneo onep onge ongo onne onno onon onpg oone oooo opec open opep opng opo- opon oppo pccc pcce pcep pcgg pcoe pcpn pcpp pece peco peec peen peep pegg pego pen- penc pene peng penn peno peon pepe pepo pgcc pgce pnec pnon pnpo pnpp poce poco poge pogg pogo ponc pone pong pono ponp poon poop pop- popc pope popo popp ppcc ppen pppn pppo pppp