-ene cccc cccu cccv ccee ccnc ccne ccnr ccnu ccrc ccre ccuc cec- cece ceec cen- cene cer- cerc cere cern cnrc cnrr crcc crce crcr cre- crec cree cren creu crne crue crun cucc cuce cucn cuer cune cure curn curr cuve cvcc cven cver cvrr eccc ecce ecne ecrc ecrr ecru ecrv eeee eerc eevn en-v ence enee ener ennc enne ennu enue enur ercc erce erec eren erer erev erne errc erre eruc erur eruv erve euer eur- eurc eure even ever evre nccc nccn nccr nccu ncec ncee ncen ncer ncnc ncrc ncre ncue necc nece necr neen neer neev nene nenu nerc nere nerr neru nerv neuc neue neun neur neuu neve nnnn nren nrrc nuce nucu nuee nuer nunc nune nunn nurc nure nurn nurr nuru nurv nvcc rccc rcnr rcuv rcvr recc rece recr recu reen reev rene renn renu rere reru reue reuu reve rrrr rrun ruce ruen ruer runc rune runn rurc rure ruru ruun ruve ruvu rv-c rver ucrc uncc unce unec unee unen uner unne ure- urne urre urun urur urve uuen uuuu uv-c uven uver uvvu vecc veen veer ven- vene venn venu ver- vere vern veur veve vrnn vuen vver vvvv