cccc cccf cccl cccs ccfc ccff ccfl cchl cchr cchs cclc ccls ccoc ccrc ccrf ccrl ccrs ccsf ccsl ccss cfcf cfcl cfco cfcs cffr cfhk cfhs cfls cfor cfos cfsl chch chcs chfc chfr chfs chhs chks chlc chlr choc choh chok chol choo chor chos chrc chrf chro chrr chrs chsc chsh chsr ckch ckck ckcl ckco ckcs ckfr ckhs cklf ckoc ckoo ckor ckos ckrc cksh cksl ckso clhs clof clok cloo clor clos clro clrs clsc coch cock coco cofc coff cofs coho cohs cok- coko col- colk coll colo cols coof cooh cook cool coos cor- corc corf cork corl coro corr cors cosc cosh cosl coso coss crcc crcr crfc crfl crfs crhs crkc crkl crlf crls croc croh crok crol croo cror crss cscc cscf csch cscl csco cscr cscs csfc csfr cshl cshs csks cslr csor csos csrc csrs cssr f--k fccf fcch fchs fcsc fcsl ffcc ffff ffhs ffrr ffss fhfs fhhs fhrs fhss flcl flhs floc flok floo flor flos foch fock foco focs fofo fohr fohs folc folk foll folo folr fols foof fook fool foos for- fork forl foro forr fors fosh foso foss frcc frfc frhs froh frol fros frsc frso fscc fsck fsfo fshs fssc fssf hccc hcch hccs hcfc hchs hcsc hcso hcss hfcs hfhs hfrs hfss hhcl hhhh hhhs hhof hkcc hkcl hkcs hlhs hlss hoch hock hocr hocs hoff hofs hohl hoho hoko hoks hol- holc holh holk holl holo hols hoof hook hool hoor hoos horc hork horl horo horr hors hosh hoss hrfc hrhs hros hrrc hrso hscc hsfc hsfs hshs hsls k-lo k-os kccc kcck kccl kccr kcfc kcfh kcfl kcfo kchf kchh kchk kchl kcho kchr kchs kckc kckf kckk kckl kcko kckr kclc kclf kclh kclk kcll kclr kcls kcof kcoh kcol kcor kcos kcrc kcrh kcro kcrr kcrs kcsc kcsf kcsr kcss kfcf kfch kfco kfcr kfcs kfff kffk kfhc kfhl kflc kflf kfll kflo kfls kfok kfoo kfor kfrc kfrh kfro kfrr kfrs kfsh kfsk kfsr khcc khcf khch khck khcs khfr khhk khhl khho khhs khkk khkr khks khlc khll khlo khlr khls khoc khok khol khor khrk khro khrr khsl khss kkch kkck kkcl kkco kkcr kkcs kkfr kkfs kkhh kkhk kkhr kkkk kklc kklf kklh kkll kklo kkls kkoh kkol kkoo kkor kkrc kkrf kkrh kkrk kkrl kkro kkrr kkrs kksf kksr kkss klcc klch klck klcl klcr klcs klfc klff klfh klhc klkc klkk klkl klko klkr klks kllc kllk klls kloc kloh klok klol kloo klor klos klrc klrf klrk klrr klrs klsc klsf klsr kocf koch kock kocs kofc koff kofh kofk kofo kohh kohl koho kohr kohs kokc kokf kokh kokk koko kokr koks kolc kolf kolk koll kolo kolr kols kooc kook kool kooo koor koos korc korf kork korl koro korr kors kos- kosc kosf kosh koso kosr koss krcc krch krcl krco krcs krfc krff krfo krfs krhc krhs krkc krkh krkk krko krkr krks krlc krlf kroc krof kroh krok krol kroo kror kros krrc krrf krrk krrl krro krrr krrs krsc krsf krsh krsk krsl krsr krss ksch ksck kscl ksco kscr kscs ksfc ksfh ksfo ksfr kshk kshl ksho kshr kshs kskf kskk ksko kskr ksks kslc kslk ksll kslo kslr ksoc ksof ksok ksol ksoo ksor ksos ksrf ksrh ksro ksrr ksrs kssl ksso kssr ksss lccc lccs lcfc lcfr lchc lchr lchs lcls lcor lcrl lcrs lcsc lcsr lfcc lfhs lhhh lhhs lhor lhss lkfs lkrs llcc llcs llhs llks lllc llll lloc lloo locc loch lock loco locs loff loho lohr lohs lokk loko loll lolo lols looc loof look lool loor loos lork loro lors losc losh loso loss lrcs lrfc lrhs lroc lrrc lrrr ls-r lsco lscs lsfc lshs lsof lsoh lsrc lsso lssr occc ochs ocks oclc ocos ocrl ocro ocrr ocrs ofcl ofcr off- offc offh offo offr offs ofor ohcc ohho ohhs ohoh ohok ohos ohso ohss okko oklo okok okol okor okro okso olcc olfs ollo olof olor olos olsh oocr ooff oofs ooho oohs oolo oooh oooo ooos orch orco orcs orff orfs orhs orko orlo oro- orof orok oror oros orro orrs orsk orso oscc oscl osco oshc osho oshs oslo osoo osor osos osro osso rccc rccs rcfc rchs rcls rcos rcsc rcsl rcss rffc rffl rfhs rhfs rhhs rhls rhoc rhoh rhos rkkf rkos rkss rlcs rlls rlsh rocc roch rock roco rocs rofc roff rofl rofo rohl rohr rohs rokh rokk roko rokr roks rolf rolk roll rolo roof rook rool roor roos rorc rork roro rosc rosh roso ross rrfc rrhs rrrr rscc rsch rscs rsfc rshs rslc rsos rssl s-os sccc sccl sccs scfc sch- schh schl scho schr schs sck- sckl scl- sclc sclk scls scoh scok scol scoo scor scr- scrc scrs scsc scsh scsl scso scsr sfcc sfco sfcs sffc sfhs sflc sfls sfor sfos sfrc sfro sfss shcc shhh shhs shl- shls shof shok shoo shor shos shrs shsc skfc skhs skol skor skss slcc slhs sloc sloh sloo slos slrc slrs slsc soch sock socl soco socr socs sofo sohh sohl soho sohs sokk soko solf solh solk soll solo solr sols soof sook sool soor soos sorh soro sorr sors sosh soso soss srcc srch srfc srhs sros sscc sscs ssfc ssfl sshl sshs sslc ssoc ssrc ssrl ssrs sssc sssf sssh ssss