-ene cccc cccl ccee ccel cclc ccnc ccne ccnr ccrc ccre ccrl cec- cece ceec ceel cel- celc cele cell cen- cene cer- cerc cere cerl cern clec clee cler cnel cnrc cnrr crcc crce crcr cre- crec cree cren crne e-cl eccc ecce eccl ecne ecrc ecrl ecrr eeee eele eerc elce elec elee elen eler elle elne ence encl enee enel ener ennc enne ercc erce erec erel eren erer erle erll erne errc erre lccc lcce lcer lcrl lece leel leen leer lele lell lene lenn lerc lere lern llcc lllc llll lncr lner lrne lrrc lrrr nccc nccn nccr ncec ncee ncel ncen ncer nclc ncln nclr ncnc ncrc ncre necc nece necr neel neen neer nelc nele nell nene nerc nere nerl nerr nlcc nlec nler nnnn nren nrrc nrrl rccc rcle rcnl rcnr recc rece recr reel reen rele rell rene renn rere rlee rrle rrrr