-ene -yne c-cd cccc cccp ccdc ccdn ccdp cced ccee ccnc ccne ccnp ccny ccpe ccpn ccpp cd-e cdec cdnc cec- cece cecp cedd cede cedy ceec cen- cend cene ceny cepc cepe cepp cncp cndd cndp cnep cpce cpep cppd cyc- cycc cyen cyn- cyne cypc cyy- cyyc cyyn dc-y dccc dccp dddd dec- decc decd dece dedd dede deed deen deep dene denn deny depc depe depp deye deyn dnce dpcp dppc dpyd dycd dyce dydd dyde dyed dyen dyep dyey dync dyne dyny eccc ecce ecdc eced ecne ecpd ecpp ecyd eddc edde eddp eddy ede- eden edny eede eeee eend eeny ence ency end- ende endy ened enee eney ennc enne enny enp- enye epcc epec epee epen eppc eppp eppy eyec eyed eyen eyey eynd eyne eype nccc nccn nccp ncdc ncdn ncec nced ncee ncen ncep ncnc ncnd ncpc ndcc ndcp ndde ndnp ndpd necc nece necy nedc nedd nede nedy need neen neep nend nene nepc nepe neye neyn nnnn npcc nppc nppd nycc nyce nycy nyen nyne nyny nypc nypd nype pccc pcce pcep pcpn pcpp pdcp pdpn pece pecy ped- pede peec peed peen peep pen- penc pend pene penn peny pepd pepe peyn pnec pnpp ppcc ppcd ppen pppd pppn pppp ppye pyce pyde pyed pyep pyn- pynd pyne pype pypy yccc ycee ydee ydnp yedd yede yeed yeen yeep yenc yend yene yepd yepe yepp yeye ynce ynde ynne ypcc yyyy