cccc cccf cccl ccee ccel ccfc ccff ccfl cclc ccoc ccrc ccre ccrf ccrl cec- cece ceco ceec ceel cef- cefc ceke cel- celc cele celf cell celo ceol ceor cer- cerc cere cerf cerl cero cfcf cfcl cfco cffr cfor cfre ckck ckcl ckco cker ckfr cklf ckoc ckoo ckor ckrc clec clee clef clek cleo cler cloe clof clok cloo clor clro coce cock coco coel cofc cofe coff cok- coke coko col- cole colk coll colo coof cook cool cor- corc core corf cork corl coro corr crcc crce crcr cre- crec cree creo crfc crfl crkc crkl crlf croc croe crok crol croo cror e-cl eccc ecce eccl ecco ecef ecfc ecfr ecko eco- ecol ecrc ecrf ecrl ecrr eeee eefe eefl eeke eele eeoc eerc eero efco efeo efke efor ekco ekek eker ekfc elce elco elec elee elef elek eleo eler elfc elfe elke elko elle ello elok elro eole eolo eore eorl ercc erce erec erel erer erfc erke erle erll eroc eroe erol eroo errc erre erro f--k fccf fece feck feek feel feer fefc fefe feff fefo feke feko fele felf felk fell felo feof ferc fere ferk fero ferr ffcc ffee ffff ffrr flcl flee fler floc floe flok floo flor foce fock foco foer fofo foke folc fole folk foll folo folr foof fook fool for- fore fork forl foro forr frcc free freo frfc froe frol k-lo kccc kcck kccl kccr kcec kcee kcel kceo kcfc kcfl kcfo kckc kckf kckk kckl kcko kckr kclc kcle kclf kclk kcll kclr kcoe kcof kcol kcor kcrc kcro kcrr keck keco kecr keef keek keel keer kefc keff kefr kekc keke kekl keko kele kelf kelk kell kelo keok keol ker- kerc kere kerf kerk kerl kero kerr kfcf kfco kfcr kfel kfer kfff kffk kflc kflf kfll kflo kfok kfoo kfor kfrc kfre kfro kfrr kkck kkcl kkco kkcr kkfr kkkk kklc kklf kkll kklo kkol kkoo kkor kkrc kkre kkrf kkrk kkrl kkro kkrr klcc klce klck klcl klcr klec klee klef klek kleo kler klfc klfe klff klkc klkk klkl klko klkr kllc klle kllk kloc kloe klok klol kloo klor klrc klrf klrk klrr kocf kock koel kofc kofe koff kofk kofo kokc koke kokf kokk koko kokr kolc kole kolf kolk koll kolo kolr kooc kook kool kooo koor korc kore korf kork korl koro korr krcc krce krcl krco krec kree kref krek kreo krfc krfe krff krfo krkc krke krkk krko krkr krlc krle krlf kroc kroe krof krok krol kroo kror krrc krre krrf krrk krrl krro krrr lccc lcce lcer lcfc lcfr lcor lcrl lece leck leco leef leek leel leer lefe leff leke lekk leko lele lell lelo leoc leof leok leor lerc lere lerk lero lfcc llcc llef lllc llll lloc lloo locc loce lock loco lofe loff loke lokk loko lole loll lolo looc looe loof look lool loor lore lork loro lrfc lroc lrrc lrrr o-eo occc oce ocee ocef ocke oclc ocre ocrl ocro ocrr oec- oecc oeec oele oere ofcl ofcr ofek ofer off- offc offe offo offr ofor ofre oker okko oklo okok okol okor okre okro olcc ole- olef oleo oler olfe olle ollo olof olor oocr ooer ooff oolo oooo oore orce orco ore- orec orek orel oreo orer orfe orff orke orko orle orlo oro- oroe orof orok oror orro rccc rcfc rcle recc rece reck recr reef reek reel refe reff refl refr reke reko rele rell relo reof reol rere rero rfef rffc rffl rkkf rlee rlef rocc roce rock roco roel roer rofc rofe roff rofl rofo roke rokk roko rokr role rolf rolk roll rolo roof rook rool roor rorc rore rork roro rrfc rrle rrrr