cccc cccl cccs cccu ccee ccel cclc ccls ccrc ccre ccrl ccrs ccsl ccss ccuc ccus cec- cece cecs ceec ceel cees ceke cel- celc cele cell cels cer- cerc cere cerl cers cesc cese cesr cess ckck ckcl ckcs cker ckrc cksl clec clee clek cler cles cleu clrs clsc clue crcc crce crcr cre- crec cree cres creu crkc crkl crls crss crue cruk crus cscc csce cscl cscr cscs csec csee cser csks cslr cslu csrc csrs csse cssr csur csus cucc cuce cuck cuek cuer cues cuk- cuke culc cule culk cull culs cure curl curr curs cusk cuss cusu e-cl eccc ecce eccl eces ecks ecrc ecrl ecrr ecru ecsc ecse ecss ecsu ecus eecs eeee eees eeke eeks eele eels eerc eers eese eesk ekek eker ekes ekur elce elec elee elek eler eles elke elks elle ells ellu else elsu elue elul elus ercc erce erec erel erer eres erke erks erle erll errc erre errs erse eruc erur erus esce escr escs escu esee esek esel eser eses eske esks esku esse essl essu esus euer eule eur- eurc eure euse kccc kcck kccl kccr kccu kcec kcee kcel kceu kckc kckk kckl kckr kclc kcle kclk kcll kclr kcls kclu kcrc kcrr kcrs kcru kcsc kcse kcsr kcss kcsu kcue kcuk kcul keck kecr keek keel keer kees kekc keke kekl keks keku kele kelk kell kelu ker- kerc kere kerk kerl kerr kers keru kesc kesk kesr kess keul keur keus kkck kkcl kkcr kkcs kkkk kklc kkll kkls kkrc kkre kkrk kkrl kkrr kkrs kkse kksr kkss kksu kkus kkuu klcc klce klck klcl klcr klcs klec klee klek kler kles klkc klkk klkl klkr klks kllc klle kllk klls klrc klrk klrr klrs klru klsc klse klsr klsu klue kluk klur kluu krcc krce krcl krcs krcu krec kree krek kres kreu krkc krke krkk krkr krks krku krlc krle krrc krre krrk krrl krrr krrs krsc krse krsk krsl krsr krss krsu kruc krue kruk krul krur ksce ksck kscl kscr kscs kscu ksec ksee ksek ksel kser kske kskk kskr ksks ksku kslc ksle kslk ksll kslr kslu ksrr ksrs ksse kssl kssr ksss kssu ksue ksuu kucc kuce kucr kuek kuel kues kueu kuke kukk kukl kuks kuku kule kull kulu kure kurk kurl kurr kurs kuru kusc kusu kuuk kuul kuur kuuu lccc lcce lccs lcer lces lcls lcrl lcrs lcsc lcsr le-u lece leck leek leel leer lees leke lekk leks lele lell lelu lerc lere lerk lese lesk less lesu leuc leuk leur lkrs llcc llcs lles lleu llks lllc llll lrcs lrrc lrrr lrse ls-r lscs lses lsrc lssr luce luck lucs luer lues luke lule lull lulu lure lurk lurs luse lusk luss luuk rccc rccs rcle rcls rcsc rcsl rcss recc rece reck recr recs recu reek reel rees reke reks rele rell rels rere rers reru rese ress reue reuk reul reus reuu rkss rlcs rlee rleu rlls rrle rrrr rscc rscs rsee rslc rsre rssl ruce ruck ruel ruer rues ruke rukk ruku rule rulk rull rurc rure rurs ruru ruse rusk russ rusu sccc scce sccl sccs scec scee scel scer sck- sckl scl- sclc sclk scls scr- scrc scre scrs scsc scsl scsr scsu scul scur se-c se-e se-k se-s se-u sec- secc sece seck secr secs secu seec seek seel seer sees seeu seke sekk seku sele selk sell sels selu serc sere serk serr sers seru sesc sese sess seul seur skee skel sker skes skss skue skul skur slcc slcu slee sler sles slrc slre slrs slsc slsu sluc slue slur srcc srec sres sscc ssce sscs ssec ssee sses sslc ssle ssrc ssrl ssrs sssc ssss suc- succ suck sucr sucs suee suel suer sues sueu suke suks suku sul- sulc sule sulk sull sulu sur- surc sure surr surs suru sus- suse susk suss susu suus ucel uces ucrc ucsc ucsu uele uell uers uess ukcc ukek ukes ukeu ukrc uksc ukur ulcc ulee ulek ules ulle ullr uluk ulul ulus ure- ures urke urle urls urre urse urss ursu uruk urur urus us-k uscc usce uscs usee usel user uses uske usle uslu ussc usse ussr usss ussu usul usus uulu uuuu