-ene cccc cccu ccee ccgc ccnc ccne ccnr ccnu ccrc ccre ccrg ccuc cec- cece ceec cege cen- cene ceng cer- cerc cere cern cgcc cgcg cger cnrc cnrr crcc crce crcr cre- crec cree creg cren creu crne crue crug crun cucc cuce cucn cuer cune cure curn curr eccc ecce ecne ecrc ecrr ecru eeee eeng eerc eerg egcc egcg egcr egec egee eger egge egne egre ence enee eneg ener enge engg engr ennc enne ennu enue enur ercc erce erec eren erer erg- ergg erne errc erre eruc erur euer euge eur- eurc eure gc-c gccc gcrg gece geen geer gege gegg gen- genc gene geng genn genu gere gern geru geue geun gggg ggrn gncc gneu gngc gnrc gnrr grcc grce grec gree greg gren greu grrr grue grug grun grur guen guer guge gugg gugu gung gunn gure gurg gurn gurr guru nccc nccn nccr nccu ncec ncee ncen ncer ncgr ncnc ncrc ncre ncue necc nece necr neen neer nege nene neng nenu nerc nere nerr neru neuc neue neun neur neuu ngen nger ngur nguu nngn nnnn nren nrrc nuce nucu nuee nuer nunc nune nung nunn nurc nure nurn nurr nuru rccc rcgc rcnr rcrg recc rece recr recu reen rege regn regr regu rene reng renn renu rere rerg reru reue reuu rrrr rrun ruce ruen ruer ruge rugg runc rune rung runn rurc rure ruru ruun ucrc ugcc ugcg ugne ugur uguu uncc unce uncg unec unee unen uner ungu unne ure- urge urgu urne urre urun urur uuen uuuu