-ene -one -yne cccc cccp ccee ccgc ccnc ccne ccnp ccny ccoc ccpe ccpn ccpp cec- cece ceco cecp ceec cege cego cen- cene ceng ceno ceny ceop cepc cepe cepo cepp cgcc cgcg cnco cncp cnep coce coco cocp coen coep cogo con- conc cone cong conn cono cony coon coop cope copg copo copp copy coyn coyo cpce cpep cyc- cycc cyeg cyen cyn- cyne cyno cyon cypc cyy- cyyc cyyn eccc ecce ecco ecne eco- ecog econ ecop ecpg ecpp eeee eeng eeny eeoc egcc egcg egec egee egge eggo eggp eggy egne ego- egon egpe egpn egpo egyo ence enco ency enee eneg eneo eney enge engg engo ennc enne enny eno- enoc enoe enon enoy enp- enye enyo eone epcc epec epee epen epoc epon eppc eppo eppp eppy eyec eyen eyey eyne eype gc-c gccc gcpc gece geen geep gege gegg gego gen- genc gene geng genn geno geny geo- geog geon gepe geyn gggg ggpo gncc gngc gnoo gnpc goce goen gogo gon- gone gong gonn gono gony goog goon goop gopc gope gopo goye gpgp gyge gyn- gyne gyng gyno gype gypo nccc nccn nccp ncec ncee ncen ncep ncnc ncoc ncpc necc nece neco necy neen neep nege nego negp nene neng neno neo- neoc neon neoo nepc nepe neye neyg neyn neyo ngen ngon ngpc nngn nnnn noce noco nogg nogo non- none nong nonn nono noo- noon nooo noop nope noye noyo npcc nppc nycc nyce nyco nycy nyen nyne nyny nyon nypc nype o-eo occc occn oce ocee ocon ocpp oec- oecc oeec oen- oeno oeye oeyo ogee ogen ogge oggy ogog ogon onc- once onco one- onec onee oneg oneo onep oney onge ongo onne onno onon onoy onpg oone oooo opec open opep opng opo- opon oppo oppy opye oyce oyee oyen oyne oyon pccc pcce pcep pcgg pcoe pcpn pcpp pece peco pecy peec peen peep pegg pego pen- penc pene peng penn peno peny peon pepe pepo peyn peyo pgcc pgce pnec pnon pnpo pnpp poce poco poey poge pogg pogo pogy ponc pone pong pono ponp pony poon poop pop- popc pope popo popp popy poyn poyo ppcc ppen pppn pppo pppp ppye pyce pyep pyg- pygg pyn- pyne pyo- pyon pype pypy yccc ycee yeen yeep yegg yego yenc yene yeng yeon yepe yepp yeye yeyo ygoe ygon ynce ynge ynne ynon yoen yogo yone yong yono yoon yoop yopo yopy yoye yoyn yoyo ypcc yyyy