-ene c-cd cccc ccdc ccdn ccdr cced ccee ccnc ccne ccnr ccrc ccre cd-e cd-r cddr cdec cder cdnc cdre cec- cece cedd cede ceec cen- cend cene cer- cerc cerd cere cern ceze cndd cnnz cnrc cnrr crcc crce crcr crcz crdc cre- crec cred cree cren crne dccc dddd ddrc ddre dec- decc decd dece dedd dede deed deen deer dene denn der- derc dere dern derr deze dnce dner dnrc dred dree dren dznc dzrr dzze eccc ecce ecdc eced ecne ecrc ecrr eddc edde ede- eden eder edrn eede eeee eend eerc eeze ence end- ende endz ened enee ener enez ennc enne ercc erce erde erec ered eren erer erez erne errc erre ezed ezer nccc nccn nccr ncdc ncdn ncdr ncec nced ncee ncen ncer ncnc ncnd ncrc ncre ndcc ndde nder ndrc ndre necc nece necr nedc nedd nede need neen neer nend nene nerc nerd nere nerr nerz nnnn nrdc nren nrrc nrrd nzcc rccc rcdc rcde rcnr rcrd rder recc recd rece recr recz redc redd rede redr reed reen rend rene renn renz rerd rere reze rndc rred rrrr zedd zede zend zenn zeze znen zrce zrze zzzz