cccc cccf cccl cccs ccfc ccff ccfl cchl cchs cclc ccls ccoc ccsf ccsl ccss cfcf cfcl cfco cfcs cfhk cfhs cfls cfos cfsl chch chcs chfc chfs chhs chks chlc choc choh chok chol choo chos chsc chsh ckch ckck ckcl ckco ckcs ckhs cklf ckoc ckoo ckos cksh cksl ckso clhs clof clok cloo clos clsc coch cock coco cofc coff cofs coho cohs cok- coko col- colk coll colo cols coof cooh cook cool coos cosc cosh cosl coso coss cscc cscf csch cscl csco cscs csfc cshl cshs csks csos f--k fccf fcch fchs fcsc fcsl ffcc ffff ffhs ffss fhfs fhhs fhss flcl flhs floc flok floo flos foch fock foco focs fofo fohs folc folk foll folo fols foof fook fool foos fosh foso foss fscc fsck fsfo fshs fssc fssf hccc hcch hccs hcfc hchs hcsc hcso hcss hfcs hfhs hfss hhcl hhhh hhhs hhof hkcc hkcl hkcs hlhs hlss hoch hock hocs hoff hofs hohl hoho hoko hoks hol- holc holh holk holl holo hols hoof hook hool hoos hosh hoss hscc hsfc hsfs hshs hsls k-lo k-os kccc kcck kccl kcfc kcfh kcfl kcfo kchf kchh kchk kchl kcho kchs kckc kckf kckk kckl kcko kclc kclf kclh kclk kcll kcls kcof kcoh kcol kcos kcsc kcsf kcss kfcf kfch kfco kfcs kfff kffk kfhc kfhl kflc kflf kfll kflo kfls kfok kfoo kfsh kfsk khcc khcf khch khck khcs khhk khhl khho khhs khkk khks khlc khll khlo khls khoc khok khol khsl khss kkch kkck kkcl kkco kkcs kkfs kkhh kkhk kkkk kklc kklf kklh kkll kklo kkls kkoh kkol kkoo kksf kkss klcc klch klck klcl klcs klfc klff klfh klhc klkc klkk klkl klko klks kllc kllk klls kloc kloh klok klol kloo klos klsc klsf kocf koch kock kocs kofc koff kofh kofk kofo kohh kohl koho kohs kokc kokf kokh kokk koko koks kolc kolf kolk koll kolo kols kooc kook kool kooo koos kos- kosc kosf kosh koso koss ksch ksck kscl ksco kscs ksfc ksfh ksfo kshk kshl ksho kshs kskf kskk ksko ksks kslc kslk ksll kslo ksoc ksof ksok ksol ksoo ksos kssl ksso ksss lccc lccs lcfc lchc lchs lcls lcsc lfcc lfhs lhhh lhhs lhss lkfs llcc llcs llhs llks lllc llll lloc lloo locc loch lock loco locs loff loho lohs lokk loko loll lolo lols looc loof look lool loos losc losh loso loss lsco lscs lsfc lshs lsof lsoh lsso occc ochs ocks oclc ocos ofcl off- offc offh offo offs ohcc ohho ohhs ohoh ohok ohos ohso ohss okko oklo okok okol okso olcc olfs ollo olof olos olsh ooff oofs ooho oohs oolo oooh oooo ooos oscc oscl osco oshc osho oshs oslo osoo osos osso s-os sccc sccl sccs scfc sch- schh schl scho schs sck- sckl scl- sclc sclk scls scoh scok scol scoo scsc scsh scsl scso sfcc sfco sfcs sffc sfhs sflc sfls sfos sfss shcc shhh shhs shl- shls shof shok shoo shos shsc skfc skhs skol skss slcc slhs sloc sloh sloo slos slsc soch sock socl soco socs sofo sohh sohl soho sohs sokk soko solf solh solk soll solo sols soof sook sool soos sosh soso soss sscc sscs ssfc ssfl sshl sshs sslc ssoc sssc sssf sssh ssss