-ene -one cccc cccu ccee ccnc ccne ccnr ccnu ccoc ccrc ccre ccuc cec- cece ceco ceec cen- cene ceno ceor ceou cer- cerc cere cern cero cnco cnrc cnrr coce coco cocu coen con- conc cone conn cono coon cor- corc core corn coro corr coue coun cour 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 eccc ecce ecco ecne eco- econ ecou ecrc ecrr ecru eeee eeoc eerc eero ence enco enee eneo ener ennc enne ennu eno- enoc enoe enon enue enur eone eore ercc erce erec eren erer erne erno eroc eroe eron eroo errc erre erro eruc erur euer eur- eurc eure euro nccc nccn nccr nccu ncec ncee ncen ncer ncnc ncoc ncor ncrc ncre ncue necc nece neco necr neen neer nene neno nenu neo- neoc neon neoo nerc nere nero nerr neru neuc neue neun neuo neur neuu nnnn noce noco noer non- none nonn nono nonu noo- noon nooo noor nor- norc nore norn noro norr noun nour nren nroc nron nrrc nuce nucu nuee nuer nunc nune nunn nuno nuoc nuon nurc nure nurn nurr nuru 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 oucc ouen ouer oun- oune our- oure ourn ouro ouu- rccc rcnr rcon recc rece recr recu reen rene renn reno renu reou rere rero reru reue reuu rnco rocc roce roco roen roer ronc rone rono roon roor rorc rore roro roru roue roun rrrr rrun ruce ruen ruer runc rune runn runo rurc rure ruro ruru ruun ucon ucrc ueno uncc unce unco unec unee unen uner unne unno unon unro uocc uone uor- uore ure- urne uro- uroo urre urun urur uuen uuno uuoc uuuu