-ene cccc cccl cccp ccee ccel cclc ccnc ccne ccnp ccpe ccpl ccpn ccpp cec- cece cecp ceec ceel cel- celc cele cell cen- cene cepc cepe cepp clec clee clep clpp cncp cnel cnep cpce cpep cplc e-cl eccc ecce eccl ecne ecpp eeee eele el-p elce elec elee elen elle elne elpe ence encl enee enel ennc enne enp- epcc epec epee epen eple epll epln eppc eppp lccc lcce lcpc lcpl lece leel leen leep lele lell lene lenn lepe lepp llcc lllc llll lpec lppl nccc nccn nccp ncec ncee ncel ncen ncep nclc ncln ncnc ncpc necc nece neel neen neep nelc nele nell nene nepc nepe nlcc nlec nlpc nnnn npcc nppc nppl pccc pcce pccl pcep pcll pcpn pcpp pece pecl peec peel peen peep pel- pele pell pen- penc pene penn pepe plcc plce ple- plec plee plen plpp pnec pnln pnnl pnpp ppcc ppen pple pppn pppp