cccc cccl cccu cccv ccee ccel cclc cclv ccoc ccrc ccre ccrl ccuc ccvo cec- cece ceco ceec ceel ceke cel- celc cele cell celo ceol ceor ceou cer- cerc cere cerl cero cevo ckck ckcl ckco ckcv cker ckoc ckoo ckor ckrc ckvl ckvo clec clee clek cleo cler cleu cloe clok cloo clor clou clro clrv clue coce cock coco cocu coel cok- coke coko col- cole colk coll colo colu cook cool cor- corc core cork corl coro corr coue couk coul cour cove covo crcc crce crcr cre- crec cree creo creu crkc crkl croc croe crok crol croo cror crue cruk cucc cuce cuck cuek cuer cuk- cuke culc cule culk cull culo cure curl curo curr cuve cvcc cver cvrr e-cl eccc ecce eccl ecco ecko eco- ecol ecou ecrc ecrl ecrr ecru ecrv eeee eeke eele eelv eeoc eerc eero ekco ekek eker ekur elce elco elec elee elek eleo eler elev elke elko elle ello ellu elok elro elue elul elve elvo eole eolo eore eorl ercc erce erec erel erer erev erke erle erll eroc eroe erol eroo errc erre erro eruc erur eruv erve euer eule eur- eurc eure euro evel ever evoe evol evoo evre evvk k-lo kccc kcck kccl kccr kccu kccv kcec kcee kcel kceo kceu kckc kckk kckl kcko kckr kckv kclc kcle kclk kcll kclr kclu kclv kcoe kcol kcor kcou kcrc kcro kcrr kcru kcrv kcue kcuk kcul kcvk kcvl kcvo kcvr kcvu kcvv keck keco kecr keek keel keer kekc keke kekl keko keku kele kelk kell kelo kelu keok keol ker- kerc kere kerk kerl kero kerr keru kerv keul keur keve kkck kkcl kkco kkcr kkkk kklc kkll kklo kklv kkol kkoo kkor kkov kkrc kkre kkrk kkrl kkro kkrr kkrv kkuu kkvr kkvu kkvv klcc klce klck klcl klcr klec klee klek kleo kler klkc klkk klkl klko klkr klkv kllc klle kllk kllv kloc kloe klok klol kloo klor klou klov klrc klrk klrr klru klue kluk klur kluu kluv klve klvk klvl klvo klvu klvv kock koel kokc koke kokk koko kokr koku kolc kole kolk koll kolo kolr kolu kolv kooc kook kool kooo koor koou koov korc kore kork korl koro korr koru korv koue koul kour kouu kovc kove kovk kovo kovr krcc krce krcl krco krcu krec kree krek kreo kreu krev krkc krke krkk krko krkr krku krkv krlc krle krlv kroc kroe krok krol kroo kror krov krrc krre krrk krrl krro krrr kruc krue kruk krul krur krvc krve krvk krvl krvo krvr krvv kucc kuce kuco kucr kucv kuek kuel kueu kuke kukk kukl kuku kule kull kulo kulu kuok kuol kuoo kure kurk kurl kuro kurr kuru kurv kuuk kuul kuur kuuu kuvo kuvr kvcc kvce kvck kvcl kvco kvcr kvcu kvcv kvec kvel kver kvkl kvlc kvle kvlo kvlr kvlu kvlv kvoc kvoe kvok kvol kvoo kvor kvou kvov kvrc kvre kvro kvrr kvrv kvue kvuu kvvl kvvr kvvv lccc lcce lcer lcor lcrl lcrv le-u lece leck leco leek leel leer leke lekk leko lele lell lelo lelu leoc leok leor leou leov lerc lere lerk lero leuc leuk leur lev- levc leve levo llcc lleu lllc llll lloc lloo lo-v locc loce lock loco locu loeu loke lokk loko lole loll lolo looc looe look lool loor lore lork loro loue louk loul lour louu love lovo lroc lrrc lrrr luce luck luer luke luko lule lull lulu lure lurk lurv luuk luve lvcc lvov lvrr o-eo occc oce ocee ocke oclc ocre ocrl ocro ocrr ocul ocur oec- oecc oeec oele oere okcu oker okko oklo okok okol okor okre okro okul okur olcc ole- oleo oler olev olle ollo olor olov olur oocr ooer ooku oolo oooo oore orce orco ore- orec orek orel oreo orer orke orko orle orlo orlu oro- oroe orok oror orro orve orvr oucc ouer oule oulk oulu our- oure ouro ouu- ovee over ovo- ovol ovoo ovre rccc rcle rcuv rcvr recc rece reck recr recu reek reel reev reke reko rele rell relo reol reou rere rero reru reue reuk reul reuu reve revo rlee rleu rocc roce rock roco roel roer roev roke rokk roko rokr roku role rolk roll rolo rook rool roor rorc rore rork roro roru roue rouk roul rove rovo rrle rrrr ruce ruck ruel ruer ruke rukk ruku rule rulk rull rulo ruok rurc rure ruro ruru ruve ruvu rv-c rver ucel ucrc uele uell ukcc ukek ukeu ukko ukok ukrc ukur ulcc ulco ulee ulek uleo ulle ullo ullr ulo- uloc uluk ulul uocc uoke uolc uor- uore uovo ure- urke urle uro- urok urol uroo urre uruk urur urve uulu uuoc uuuu uv-c uvel uver uvok uvvu vecc veck veel veer veke vel- vele vell velo velu veol veor ver- vere verk verl vero veur veve vevo vkor vlcc vloc vlok voce voel voer voeu voke volc vole volk voll volo vooc vool voor vor- vore voro voru voue vouk voul vour vovk vreo vroc vruk vuco vuel vuku vull vver vvvv