-ene -one -yne cccc ccee ccgc ccnc ccne ccny ccoc cec- cece ceco ceec cege cego cen- cene ceng ceno ceny cgcc cgcg cnco coce coco coen cogo con- conc cone cong conn cono cony coon coyn coyo cyc- cycc cyeg cyen cyn- cyne cyno cyon cyy- cyyc cyyn eccc ecce ecco ecne eco- ecog econ eeee eeng eeny eeoc egcc egcg egec egee egge eggo eggy egne ego- egon egyo ence enco ency enee eneg eneo eney enge engg engo ennc enne enny eno- enoc enoe enon enoy enye enyo eone eyec eyen eyey eyne gc-c gccc gece geen gege gegg gego gen- genc gene geng genn geno geny geo- geog geon geyn gggg gncc gngc gnoo goce goen gogo gon- gone gong gonn gono gony goog goon goye gyge gyn- gyne gyng gyno nccc nccn ncec ncee ncen ncnc ncoc necc nece neco necy neen nege nego nene neng neno neo- neoc neon neoo neye neyg neyn neyo ngen ngon nngn nnnn noce noco nogg nogo non- none nong nonn nono noo- noon nooo noye noyo nycc nyce nyco nycy nyen nyne nyny nyon o-eo occc occn oce ocee ocon oec- oecc oeec oen- oeno oeye oeyo ogee ogen ogge oggy ogog ogon onc- once onco one- onec onee oneg oneo oney onge ongo onne onno onon onoy oone oooo oyce oyee oyen oyne oyon yccc ycee yeen yegg yego yenc yene yeng yeon yeye yeyo ygoe ygon ynce ynge ynne ynon yoen yogo yone yong yono yoon yoye yoyn yoyo yyyy