-ene -one cccc cccp cccu ccee ccnc ccne ccnp ccnu ccoc ccpe ccpn ccpp ccuc ccup cec- cece ceco cecp ceec cen- cene ceno ceop ceou cepc cepe cepo cepp cnco cncp cnep coce coco cocp cocu coen coep con- conc cone conn cono coon coop cope copo copp coue coun coup cpce cpcu cpep cucc cuce cucn cune cuno cunp cuon cupe cupo cupp eccc ecce ecco ecne eco- econ ecop ecou ecpp eeee eeoc ence enco enee eneo ennc enne ennu eno- enoc enoe enon enp- enue eone epcc epec epee epen epoc epon eppc eppo eppp n-up nccc nccn nccp nccu ncec ncee ncen ncep ncnc ncoc ncpc ncue necc nece neco neen neep nene neno nenu neo- neoc neon neoo nepc nepe neuc neue neun neuo neuu nnnn noce noco non- none nonn nono nonu noo- noon nooo noop nope noun noup npcc nppc nuce nucu nuee nunc nune nunn nuno nuoc nuon nupe o-eo occc occn oce ocee ocon ocpp oec- oecc oeec oen- oeno onc- once onco one- onec onee oneo onep onne onno onon onpu onue onup oone oooo opec open opep opo- opon oppo oucc ouen oun- oune oupe ouu- pccc pcce pcep pcoe pcpn pcpp pcun pece peco peec peen peep pen- penc pene penn peno penu peon peou pepe pepo peun pnec pneu pnon pnpo pnpp pnup poce poco ponc pone pono ponp poon poop pop- popc pope popo popp poun poup ppcc ppen pppn pppo pppp pu-e puce pueo pueu punc pune puno punu pupe pupu puuc uccp ucon ueno uncc unce unco uncp unec unee unen unne unno unon unop unpc uocc uone upen upne upnp upon uppc uppe uppp uppu upup uucp uuen uuno uuoc uuuu