-ene -one cccc cccu cccv ccee ccnc ccne ccnr ccnu ccoc ccrc ccre ccuc ccvo cec- cece ceco ceec cen- cene ceno ceor ceou cer- cerc cere cern cero cevo cnco cnrc cnrr coce coco cocu coen con- conc cone conn cono conv coon cor- corc core corn coro corr coue coun cour cove covo crcc crce crcr cre- crec cree cren creo creu crne croc croe cron croo cror crue crun cucc cuce cucn cuer cune cuno cuon cure curn curo curr cuve cvcc cven cver cvrr eccc ecce ecco ecne eco- econ ecou ecrc ecrr ecru ecrv eeee eeoc eerc eero eevn en-v ence enco enee eneo ener ennc enne ennu eno- enoc enoe enon enue enur eone eore ercc erce erec eren erer erev erne erno eroc eroe eron eroo errc erre erro eruc erur eruv erve euer eur- eurc eure euro even ever evoe evon evoo evre nccc nccn nccr nccu ncec ncee ncen ncer ncnc ncoc ncor ncrc ncre ncue necc nece neco necr neen neer neev nene neno nenu neo- neoc neon neoo nerc nere nero nerr neru nerv neuc neue neun neuo neur neuu neve nevo nnnn noce noco noer non- none nonn nono nonu noo- noon nooo noor noov nor- norc nore norn noro norr norv noun nour nov- nove novo nren nroc nron nrrc nuce nucu nuee nuer nunc nune nunn nuno nuoc nuon nurc nure nurn nurr nuru nurv nuvo nvcc o-eo occc occn oce ocee ocon ocre ocro ocrr ocur oec- oecc oeec oen- oeno oere onc- once onco one- onec onee oneo oner onne onno onon onor onue onur oocr ooer oone oooo oore orce orco ore- orec oren oreo orer ornc orne orno oro- oroe oron oror orro orve orvr oucc ouen ouer oun- oune our- oure ourn ouro ouu- ovee oven over ovo- ovon ovoo ovre rccc rcnr rcon rcuv rcvr recc rece recr recu reen reev rene renn reno renu reou rere rero reru reue reuu reve revo rnco rocc roce roco roen roer roev ronc rone rono roon roor rorc rore roro roru roue roun rove rovo rrrr rrun ruce ruen ruer runc rune runn runo rurc rure ruro ruru ruun ruve ruvu rv-c rver ucon ucrc ueno uncc unce unco unec unee unen uner unne unno unon unov unro uocc uone uor- uore uovo ure- urne uro- uroo urre urun urur urve uuen uuno uuoc uuuu uv-c uven uver uvvu vcon vecc veen veer ven- vene venn veno venu veor ver- vere vern vero veur veve vevo voce voer voeu vone vonn vooc voor vor- vore voro voru voue voun vour vreo vrnn vroc vron vuco vuen vuno vver vvvv