-ene c-cd cccc cccu ccdc ccdn cced ccee ccnc ccne ccnu ccuc cd-e cdec cdnc cec- cece cedd cede cedu ceec cen- cend cene cndd cucc cuce cucn cude cued cund cune dccc dccu dddd dec- decc decd dece dedd dede dedu deed deen dene denn denu deue dnce duce dudd dude dudu dunc dune dunn eccc ecce ecdc eced ecne eddc edde ede- eden educ edun eede eedu eeee eend ence end- ende endu ened enee ennc enne ennu enue eucd eude nccc nccn nccu ncdc ncdn ncdu ncec nced ncee ncen ncnc ncnd ncue ndcc ndde necc nece nedc nedd nede nedu need neen nend nene nenu neuc neue neun neuu nnnn nuce nucu nudc nudd nude nuee nunc nune nunn ucdc ucdd uden udun uend uncc unce unde unec uned unee unen unne uuen uuuu