-ene cccc cccv ccee ccgc ccnc ccne ccnr ccrc ccre ccrg cec- cece ceec cege cen- cene ceng cer- cerc cere cern cgcc cgcg cger cnrc cnrr crcc crce crcr cre- crec cree creg cren crne cvcc cven cver cvrg cvrr eccc ecce ecne ecrc ecrr ecrv eeee eeng eerc eerg eevn egcc egcg egcr egec egee eger egge egne egnv egre egvn en-v ence enee eneg ener enge engg engr ennc enne ercc erce erec eren erer erev erg- ergg erne errc erre erve even ever evng evre gc-c gccc gcrg gece geen geer gege gegg gen- genc gene geng genn gere gern geve gggg ggrn gncc gngc gnrc gnrr grcc grce grec gree greg gren grev grrr grve gvvv nccc nccn nccr ncec ncee ncen ncer ncgr ncnc ncrc ncre necc nece necr neen neer neev nege nene neng nerc nere nerr nerv neve ngen nger nngn nnnn nren nrrc nvcc rccc rcgc rcnr rcrg rcvr recc rece recr reen reev rege regn regr rene reng renn rere rerg reve rrrr rv-c rver vecc veen veer vege ven- vene veng venn ver- vere vern veve vgcc vrnn vver vvvv