-ene cccc cccl cccp ccee ccel cclc ccnc ccne ccnp ccnr ccpe ccpl ccpn ccpp ccpr ccrc ccre ccrl ccrp cec- cece cecp ceec ceel cel- celc cele cell cen- cene cepc cepe cepp cepr cer- cerc cere cerl cern cerp clec clee clep cler clpp cncp cnel cnep cnrc cnrr cpce cpep cper cplc cpre crcc crce crcr cre- crec cree cren crep crne crpc e-cl eccc ecce eccl ecne ecpp ecrc ecrl ecrr eeee eele eerc el-p elce elec elee elen eler elle elne elpe ence encl enee enel ener ennc enne enp- epcc epec epee epen eper eple epll epln eppc eppp eprp ercc erce ercp erec erel eren erer erle erll erne erpe errc erre lccc lcce lcer lcpc lcpl lcrl lece leel leen leep leer lele lell lene lenn lepe lepp lerc lere lern lerp llcc lllc llll lncr lner lpec lppl lprp lrne lrrc lrrr nccc nccn nccp nccr ncec ncee ncel ncen ncep ncer nclc ncln nclr ncnc ncpc ncrc ncre ncrp necc nece necr neel neen neep neer nelc nele nell nene nepc nepe nepr nerc nere nerl nerr nlcc nlec nler nlpc nlrp nnnn nnpr npcc nppc nppl nren nrpc nrpn nrrc nrrl pccc pcce pccl pcep pcer pcll pcpn pcpp pcrc pcre pcrl pece pecl pecr peec peel peen peep peer pel- pele pell pen- penc pene penn pepe per- perc pere perl pern perp perr plcc plce ple- plec plee plen plpp pnec pnln pnnl pnpp ppcc ppen pper pple pppn pppp pprc prcc prcp pre- prec pree prel pren prep prle prlr prnp rccc rcep rcle rcnl rcnr recc rece recp recr reel reen reep rele rell relp rene renn repe repl repp repr rere rlee rncp rppn rrle rrrr