-ene cccc cccu ccee ccnc ccne ccnr ccnu ccrc ccre ccuc cec- cece ceec ceke cen- cene cer- cerc cere cern ckck cken cker cknc ckrc cnrc cnrr crcc crce crcr cre- crec cree cren creu crkc crne crue cruk crun cucc cuce cuck cucn cuek cuer cuk- cuke cune cure curn curr eccc ecce ecne ecrc ecrr ecru eeee eeke eerc ekek eken eker ekne ekur ence enee ener enke enkr ennc enne ennu enue enur ercc erce erec eren erer erke erne errc erre eruc erur euer eur- eurc eure kccc kcck kccr kccu kcec kcee kceu kckc kckk kckn kckr kcnr kcrc kcrn kcrr kcru kcue kcuk keck kecr keek keen keer kekc keke keku ken- kene kenk kenn kenr kenu ker- kerc kere kerk kern kerr keru keun keur kkck kkcn kkcr kken kkkk kkne kknn kknu kkrc kkre kkrk kkrn kkrr kkuu knce knck kncn kncr kncu knec knee knek knen kneu knkk knnk knnr knrk knue knuk knur krcc krce krcn krcu krec kree krek kren kreu krkc krke krkk krkn krkr krku krne krnk krnn krnu krrc krre krrk krrn krrr kruc krue kruk krun krur kucc kuce kucr kuek kuen kueu kuke kukk kukn kuku kunc kune kunk kunr kunu kure kurk kurr kuru kuuk kuur kuuu nccc nccn nccr nccu ncec ncee ncen ncer ncnc ncrc ncre ncue ncuk necc nece neck necr neen neer neke neku nene nenu nerc nere nerk nerr neru neuc neue neuk neun neur neuu nnnn nren nrrc nuce nuck nucu nuee nuer nuke nuku nunc nune nunk nunn nurc nure nurn nurr nuru nuuk rccc rcnr recc rece reck recr recu reek reen reke rene renk renn renu rere reru reue reuk reuu rrrr rrun ruce ruck ruen ruer ruke rukk rukn ruku runc rune runk runn rurc rure ruru ruun ucrc ukcc ukek ukeu uknc ukrc ukur uncc unce unec unee unen uner unke unkn unne ure- urke urne urre uruk urun urur uuen uuuu