-ene cccc cccs cccu ccee ccnc ccne ccnr ccns ccnu ccrc ccre ccrs ccsn ccss ccuc ccus cec- cece cecs ceec cees ceke cen- cene cens cer- cerc cere cern cers cesc cese cesr cess ckck ckcs cken cker cknc ckns ckrc cnes cnrc cnrr cnss crcc crce crcr cre- crec cree cren cres creu crkc crne crns crss crue cruk crun crus cscc csce cscr cscs csec csee cser csks csne csrc csrs csse cssr csur csus cucc cuce cuck cucn cuek cuer cues cuk- cuke cune cure curn curr curs cusk cuss cusu eccc ecce eces ecks ecne ecrc ecrr ecru ecsc ecse ecss ecsu ecus eecs eeee eees eeke eeks eens eerc eers eese eesk ekek eken eker ekes ekne ekur ence encs enee ener enes enke enkr ennc enne enns ennu enrs ense ensu enue enur enus ercc erce erec eren erer eres erke erks erne erns errc erre errs erse eruc erur erus esce escr escs escu esee esek esen eser eses eske esks esku esne esse essu esus euer eur- eurc eure euse kccc kcck kccr kccu kcec kcee kceu kckc kckk kckn kckr kcnr kcns kcrc kcrn kcrr kcrs kcru kcsc kcse kcsn kcsr kcss kcsu kcue kcuk keck kecr keek keen keer kees kekc keke keks keku ken- kene kenk kenn kenr kens kenu ker- kerc kere kerk kern kerr kers keru kesc kesk kesn kesr kess keun keur keus kkck kkcn kkcr kkcs kken kkkk kkne kknn kkns kknu kkrc kkre kkrk kkrn kkrr kkrs kkse kksn kksr kkss kksu kkus kkuu knce knck kncn kncr kncu knec knee knek knen knes kneu knkk knnk knnr knns knrk knrs knsc knse knsk knsn knsr knss knsu knue knuk knur knus krcc krce krcn krcs krcu krec kree krek kren kres kreu krkc krke krkk krkn krkr krks krku krne krnk krnn krnu krrc krre krrk krrn krrr krrs krsc krse krsk krsn krsr krss krsu kruc krue kruk krun krur ksce ksck kscn kscr kscs kscu ksec ksee ksek ksen kser kske kskk kskn kskr ksks ksku ksnc ksnk ksnn ksnr ksns ksrn ksrr ksrs ksse kssn kssr ksss kssu ksue ksun ksuu kucc kuce kucr kuek kuen kues kueu kuke kukk kukn kuks kuku kunc kune kunk kunr kuns kunu kure kurk kurr kurs kuru kusc kusn kusu kuuk kuur kuuu nccc nccn nccr nccs nccu ncec ncee ncen ncer nces ncnc ncrc ncre ncsc ncse ncss ncue ncuk necc nece neck necr necs neen neer nees neke neku nene nens nenu nerc nere nerk nerr ners neru nesc nese nesn nesr ness neuc neue neuk neun neur neuu nnes nnnn nnss nrcs nren nrrc nrsc nscc nscs nsec nser nskk nsnr nsrc nssc nsse nssr nsss nuce nuck nucs nucu nuee nuer nuke nuku nunc nune nunk nunn nuns nurc nure nurn nurr nurs nuru nuse nuss nusu nuuk rccc rccs rcnr rcsc rcss recc rece reck recr recs recu reek reen rees reke reks rene renk renn rens renu rere rers reru rese resn ress reue reuk reus reuu rkss rncs rrrr rrun rscc rscn rscs rsee rsnn rsnr rsre ruce ruck ruen ruer rues ruke rukk rukn ruku runc rune runk runn runs rurc rure rurs ruru ruse rusk russ rusu ruun sccc scce sccs scec scee scer sck- scnr scr- scrc scre scrn scrs scsc scsn scsr scsu scun scur se-c se-e se-k se-n se-s se-u sec- secc sece seck secn secr secs secu seec seek seen seer sees seeu seke sekk seku sene senn senr sens serc sere serk sern serr sers seru sesc sese sess seur skee sken sker skes skn- skss skue skun skur sncc snee sner snes snns snrk snrs snur snus srcc srec sres srnn sscc ssce sscs ssec ssee sses ssns ssrc ssrs sssc ssss suc- succ suck sucr sucs suee suen suer sues sueu suke suks suku sun- sune sunk sunn suns sunu sur- surc sure surn surr surs suru sus- suse susk suss susu suus uces ucrc ucsc ucsu uers uesn uess ukcc ukek ukes ukeu uknc ukrc uksc ukur uncc unce uncs unec unee unen uner unes unke unkn unks unne unns unrs uns- unsc unus ure- ures urke urne urns urre urse urss ursu uruk urun urur urus us-k uscc usce uscs usee usen user uses uske usnc usnr usnu ussc usse ussr usss ussu usun usus uuen uuuu