-ene c-cd cccc ccdc ccdn cced ccee ccnc ccne cctc cctt cd-e cdec cdnc cec- cece cect cedd cede cedt ceec cen- cend cene cent cet- cete cndd cnet cntc ctec cten ctne cttn dccc dcct dctc dddd dec- decc decd dece dect dedd dede deed deen deet dene denn dent dete detn dnce dnet dntt dtcc dted dten eccc ecce ecct ecdc eced ecne ect- ectc eddc edde ede- eden eede eeee eend eent eetc eete ence end- ende ened enee ennc enne ent- entd ente etcc etec etee eten etne ette ettn nccc nccn ncct ncdc ncdn ncec nced ncee ncen ncnc ncnd nctc ncte ndcc ndde ndnt ndtc necc nece nect nedc nedd nede need neen neet nend nene nent net- netd nete nett nnnn nntn ntcc ntnd tccc tcdd tcnn tctc tect tedd tede teec teed teen teet tenc tend tene tenn tent tete tett tncc tndd ttcn tten tttt