cccc cccs cchr cchs ccoc ccrc ccrs ccss chch chcs chhs chks choc choh chok choo chor chos chrc chro chrr chrs chsc chsh chsr ckch ckck ckco ckcs ckhs ckoc ckoo ckor ckos ckrc cksh ckso coch cock coco coho cohs cok- coko cooh cook coos cor- corc cork coro corr cors cosc cosh coso coss crcc crcr crhs crkc croc croh crok croo cror crss cscc csch csco cscr cscs cshs csks csor csos csrc csrs cssr hccc hcch hccs hchs hcsc hcso hcss hhhh hhhs hkcc hkcs hoch hock hocr hocs hoho hoko hoks hook hoor hoos horc hork horo horr hors hosh hoss hrhs hros hrrc hrso hscc hshs k-os kccc kcck kccr kchh kchk kcho kchr kchs kckc kckk kcko kckr kcoh kcor kcos kcrc kcrh kcro kcrr kcrs kcsc kcsr kcss khcc khch khck khcs khhk khho khhs khkk khkr khks khoc khok khor khrk khro khrr khss kkch kkck kkco kkcr kkcs kkhh kkhk kkhr kkkk kkoh kkoo kkor kkrc kkrh kkrk kkro kkrr kkrs kksr kkss koch kock kocs kohh koho kohr kohs kokc kokh kokk koko kokr koks kooc kook kooo koor koos korc kork koro korr kors kos- kosc kosh koso kosr koss krcc krch krco krcs krhc krhs krkc krkh krkk krko krkr krks kroc kroh krok kroo kror kros krrc krrk krro krrr krrs krsc krsh krsk krsr krss ksch ksck ksco kscr kscs kshk ksho kshr kshs kskk ksko kskr ksks ksoc ksok ksoo ksor ksos ksrh ksro ksrr ksrs ksso kssr ksss occc ochs ocks ocos ocro ocrr ocrs ohcc ohho ohhs ohoh ohok ohos ohso ohss okko okok okor okro okso oocr ooho oohs oooh oooo ooos orch orco orcs orhs orko oro- orok oror oros orro orrs orsk orso oscc osco oshc osho oshs osoo osor osos osro osso rccc rccs rchs rcos rcsc rcss rhhs rhoc rhoh rhos rkos rkss rocc roch rock roco rocs rohr rohs rokh rokk roko rokr roks rook roor roos rorc rork roro rosc rosh roso ross rrhs rrrr rscc rsch rscs rshs rsos s-os sccc sccs sch- schh scho schr schs sck- scoh scok scoo scor scr- scrc scrs scsc scsh scso scsr shcc shhh shhs shok shoo shor shos shrs shsc skhs skor skss soch sock soco socr socs sohh soho sohs sokk soko sook soor soos sorh soro sorr sors sosh soso soss srcc srch srhs sros sscc sscs sshs ssoc ssrc ssrs sssc sssh ssss