-ene cccc cccl ccee ccel cclc ccnc ccne cctc cctl cctt cec- cece cect ceec ceel cel- celc cele cell celt cen- cene cent cet- cete clec clee clet cltc cnel cnet cntc ctec cten ctle ctne cttn e-cl eccc ecce eccl ecct eclt ecne ect- ectc eeee eele eent eetc eete elce elec elee elen elet elle elne elte ence encl enee enel ennc enne ent- ente etcc etec etee etel eten etne ette ettn lccc lcce lctl lece lect leel leen leet lele lell lene lenn lent lete lett llcc llet lllc llll lntc ltcc ltee ltnt lttc nccc nccn ncct ncec ncee ncel ncen nclc ncln ncnc nctc ncte necc nece nect neel neen neet nelc nele nell nelt nene nent net- nete nett nlcc nlec nnnn nntn ntcc tccc tcnn tctc tecl tect teec teel teen teet tel- telc tele tell teln telt tenc tene tenn tent tete tett tlen tncc ttcn tten tttt