cccc cccs ccgc ccgs ccgt ccoc ccrc ccrg ccrs ccrt ccsg ccss ccst cctc cctt cgcc cgcg cggs cgro cgss cgst ckck ckco ckcs ckgo ckoc ckoo ckor ckos ckot ckrc ckso ckst ckts cock coco coct cogo cogs cok- coko cook coos coot cor- corc corg cork coro corr cors cort cosc coso coss cost cotc coto cots cott crcc crcr crgs crkc croc crok croo cror crot crrt crss crst crtc crts cscc csco cscr cscs csks csor csos csot csrc csrs cssr cstc cstg csto cstr csts ctor ctos ctot ctrc ctrs ctsc ctss ctts gc-c gccc gccs gcos gcrg gcss gcst gctc gcts gggg ggss gocr gogo gogs goog gook goor goos goot gorg goro gorr gors gort goso goss gost goto gots gott grcc groc grog grok groo gror gros grot grrr grrs grss grtc gsoc gsos gstr gtco gtcr gtcs gtos k-os kccc kcck kccr kcct kcgc kcgr kcgs kckc kckk kcko kckr kcog kcor kcos kcot kcrc kcrg kcro kcrr kcrs kcrt kcsc kcsg kcsr kcss kcst kctc kcto kgcc kgcr kggg kggo kggr kgks kgor kgos kgot kgrc kgrg kgrk kgro kgrr kgrs kgrt kgso kgsr kgst kgtk kgto kgts kkck kkco kkcr kkcs kkct kkgo kkgr kkkk kkoo kkor kkot kkrc kkrk kkro kkrr kkrs kkrt kksr kkss kkst kktc kktk kkts kock kocs koct kogg kogo kogt kokc kokk koko kokr koks kooc koog kook kooo koor koos koot korc korg kork koro korr kors kort kos- kosc kosg koso kosr koss kost kotc kotk koto kotr kots kott krcc krcg krco krcs krgs krgt krkc krkk krko krkr krks kroc krog krok kroo kror kros krrc krrg krrk krro krrr krrs krrt krsc krsk krsr krss krst krtc krtk krto krtr krts ksck ksco kscr kscs ksgc ksgg ksgr ksgt kskg kskk ksko kskr ksks ksoc ksok ksoo ksor ksos ksrg ksro ksrr ksrs ksrt ksso kssr ksss ksst kstc kstk ksto kstr ksts kstt ktcc ktck ktco ktcr ktcs ktgg ktgo ktgr ktgs ktkc ktkk ktko ktkr ktks ktkt ktoc ktok ktoo ktor ktot ktrc ktrg ktrk ktro ktrr ktrs ktrt ktsc ktso ktsr ktst kttc kttg kttk ktto kttr ktts kttt occc occt ocks ocos ocro ocrr ocrs oct- octo octs ogog ogro okgo okko okok okor okot okro okso okto oocr oooo ooos oort oost oots orco orcs orgo orgs orko oro- orok oror oros orot orro orrs orsk orso ortc orto orts oscc osco osoo osor osos osro osso ostc ostr osts oto- otog otok otoo otor otos otro otrs otsg otso otto otts rccc rccs rcgc rcos rcrg rcsc rcss rctc rctg rcts rgtr rgts rkos rkss rkts rocc rock roco rocs rogg rogo rokk roko rokr roks roog rook roor roos root rorc rork roro rort rosc roso ross rost rotc rotg rotk roto rotr rots rott rrrr rscc rscs rsgc rsos rsts rtcc rtcg rtgs rtkg rtss rtts s-os sccc sccs scct scgs sck- scog scok scoo scor scot scr- scrc scrs scsc scso scsr scst sctc scto sctr scts sgcg sggg sggs sgro sgss sgts skog skor skot skrt skss sock soco socr socs sogo sogs sokk soko soog sook soor soos soot sorg soro sorr sors sort soso soss sost sotc sotk soto sots srcc srct sros srtr sscc sscs ssgs ssgt ssoc ssot ssrc ssrg ssrs sssc ssss sstc ssts stcc stcs stgr stks stog stok stoo stor stos stot strc strk stro strs stss sttc sttr tccc tcos tctc tcts tgcc tgtc tgts tkkg tkos tkts tock toco togo togr togs togt toko took toor toos toot torc torg tork toro torr tors tort tosc tosk toso toss tost totc toto totr tots tott trcc troc trog troo tros trot trst trtc trtr tscc tscg tsgt tsks tsos tssg tssr tsst tstc tsts ttkg ttss tttt