-ene -one cccc ccee ccgc ccnc ccne ccoc cec- cece ceco ceec cege cego cen- cene ceng ceno cgcc cgcg cnco coce coco coen cogo con- conc cone cong conn cono coon eccc ecce ecco ecne eco- ecog econ eeee eeng eeoc egcc egcg egec egee egge eggo egne ego- egon ence enco enee eneg eneo enge engg engo ennc enne eno- enoc enoe enon eone gc-c gccc gece geen gege gegg gego gen- genc gene geng genn geno geo- geog geon gggg gncc gngc gnoo goce goen gogo gon- gone gong gonn gono goog goon nccc nccn ncec ncee ncen ncnc ncoc necc nece neco neen nege nego nene neng neno neo- neoc neon neoo ngen ngon nngn nnnn noce noco nogg nogo non- none nong nonn nono noo- noon nooo o-eo occc occn oce ocee ocon oec- oecc oeec oen- oeno ogee ogen ogge ogog ogon onc- once onco one- onec onee oneg oneo onge ongo onne onno onon oone oooo