-ene cccc cccs cccu ccee ccnc ccne ccns ccnu ccsn ccss ccuc ccus cec- cece cecs ceec cees cen- cene cens cesc cese cess cnes cnss cscc csce cscs csec csee csne csse csus cucc cuce cucn cues cune cuss cusu eccc ecce eces ecne ecsc ecse ecss ecsu ecus eecs eeee eees eens eese ence encs enee enes ennc enne enns ennu ense ensu enue enus esce escs escu esee esen eses esne esse essu esus euse nccc nccn nccs nccu ncec ncee ncen nces ncnc ncsc ncse ncss ncue necc nece necs neen nees nene nens nenu nesc nese nesn ness neuc neue neun neuu nnes nnnn nnss nscc nscs nsec nssc nsse nsss nuce nucs nucu nuee nunc nune nunn nuns nuse nuss nusu sccc scce sccs scec scee scsc scsn scsu scun se-c se-e se-n se-s se-u sec- secc sece secn secs secu seec seen sees seeu sene senn sens sesc sese sess sncc snee snes snns snus sscc ssce sscs ssec ssee sses ssns sssc ssss suc- succ sucs suee suen sues sueu sun- sune sunn suns sunu sus- suse suss susu suus uces ucsc ucsu uesn uess uncc unce uncs unec unee unen unes unne unns uns- unsc unus uscc usce uscs usee usen uses usnc usnu ussc usse usss ussu usun usus uuen uuuu