cccc cccf cccl ccee ccel ccfc ccff ccfl cclc ccoc cec- cece ceco ceec ceel cef- cefc ceke cel- celc cele celf cell celo ceol cfcf cfcl cfco ckck ckcl ckco cklf ckoc ckoo clec clee clef clek cleo cloe clof clok cloo coce cock coco coel cofc cofe coff cok- coke coko col- cole colk coll colo coof cook cool e-cl eccc ecce eccl ecco ecef ecfc ecko eco- ecol eeee eefe eefl eeke eele eeoc efco efeo efke ekco ekek ekfc elce elco elec elee elef elek eleo elfc elfe elke elko elle ello elok eole eolo f--k fccf fece feck feek feel fefc fefe feff fefo feke feko fele felf felk fell felo feof ffcc ffee ffff flcl flee floc floe flok floo foce fock foco fofo foke folc fole folk foll folo foof fook fool k-lo kccc kcck kccl kcec kcee kcel kceo kcfc kcfl kcfo kckc kckf kckk kckl kcko kclc kcle kclf kclk kcll kcoe kcof kcol keck keco keef keek keel kefc keff kekc keke kekl keko kele kelf kelk kell kelo keok keol kfcf kfco kfel kfff kffk kflc kflf kfll kflo kfok kfoo kkck kkcl kkco kkkk kklc kklf kkll kklo kkol kkoo klcc klce klck klcl klec klee klef klek kleo klfc klfe klff klkc klkk klkl klko kllc klle kllk kloc kloe klok klol kloo kocf kock koel kofc kofe koff kofk kofo kokc koke kokf kokk koko kolc kole kolf kolk koll kolo kooc kook kool kooo lccc lcce lcfc lece leck leco leef leek leel lefe leff leke lekk leko lele lell lelo leoc leof leok lfcc llcc llef lllc llll lloc lloo locc loce lock loco lofe loff loke lokk loko lole loll lolo looc looe loof look lool o-eo occc oce ocee ocef ocke oclc oec- oecc oeec oele ofcl ofek off- offc offe offo okko oklo okok okol olcc ole- olef oleo olfe olle ollo olof ooff oolo oooo