-ene cccc cccl cccp cccv ccee ccel cclc cclv 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 cpvc cpvl cvcc cven e-cl eccc ecce eccl ecne ecpp eeee eele eelv eevn el-p elce elec elee elen elev elle elne elpe elve en-v ence encl enee enel ennc enne enp- epcc epec epee epen eple epll epln eppc eppp evel even evpl lccc lcce lcpc lcpl lcvp lece leel leen leep lele lell lene lenn lepe lepp lev- levc leve llcc lllc llll lpec lppl lvcc nccc nccn nccp ncec ncee ncel ncen ncep nclc ncln ncnc ncpc necc nece neel neen neep neev nelc nele nell nene nepc nepe neve nlcc nlec nlpc nlve nnnn npcc nppc nppl nvcc pccc pcce pccl pcep pcll pcpn pcpp pece pecl peec peel peen peep peev pel- pele pell pen- penc pene penn pepe plcc plce ple- plec plee plen plpp pnec pnln pnnl pnpp ppcc ppen pple pppn pppp pvlv vecc veel veen veep vel- vele vell velp ven- vene venn vepe veve vlcc vplp vvvv