cccc cccs ccnc ccnr ccns ccoc ccrc ccrs ccrt ccsn ccss ccst cctc cctt ckck ckco ckcs cknc ckns cknt ckoc ckoo ckor ckos ckot ckrc ckso ckst ckts cnco cnrc cnrr cnrt cnss cntc cntk cntr cock coco coct cok- coko con- conc conk conn cono cons cont cook coon coos coot cor- corc cork corn coro corr cors cort cosc coso coss cost cotc cotn coto cots cott crcc crcr crkc crns croc crok cron croo cror crot crrt crss crst crtc crts cscc csco cscr cscs csks csor csos csot csrc csrs cssr cstc csto cstr csts ctns ctor ctos ctot ctrc ctrn ctrs ctsc ctsn ctss cttn ctts k-os kccc kcck kccr kcct kckc kckk kckn kcko kckr kcno kcnr kcns kcnt kcon kcor kcos kcot kcrc kcrn kcro kcrr kcrs kcrt kcsc kcsn kcsr kcss kcst kctc kctn kcto kkck kkcn kkco kkcr kkcs kkct kkkk kknn kkno kkns kknt kkon kkoo kkor kkot kkrc kkrk kkrn kkro kkrr kkrs kkrt kksn kksr kkss kkst kktc kktk kkts knck kncn knco kncr knct knkk knkt knnk knnr knns knoc knok knon knor knot knrk knro knrs knsc knsk knsn knso knsr knss knst kntk kntn knto kntr knts kock kocn kocs koct kokc kokk kokn koko kokr koks konc konk kono kont kooc kook koon kooo koor koos koot korc kork korn koro korr kors kort kos- kosc koso kosr koss kost kotc kotk kotn koto kotr kots kott krcc krcn krco krcs krkc krkk krkn krko krkr krks krnk krnn krno krnt kroc krok kroo kror kros krrc krrk krrn krro krrr krrs krrt krsc krsk krsn krsr krss krst krtc krtk krtn krto krtr krts ksck kscn ksco kscr kscs kskk kskn ksko kskr ksks ksnc ksnk ksnn ksnr ksns ksnt ksoc ksok kson ksoo ksor ksos ksrn ksro ksrr ksrs ksrt kssn ksso kssr ksss ksst kstc kstk kstn ksto kstr ksts kstt ktcc ktck ktco ktcr ktcs ktkc ktkk ktkn ktko ktkr ktks ktkt ktnc ktnk ktnn ktno ktns ktnt ktoc ktok kton ktoo ktor ktot ktrc ktrk ktrn ktro ktrr ktrs ktrt ktsc ktsn ktso ktsr ktst kttc kttk kttn ktto kttr ktts kttt nccc nccn nccr nccs ncct ncnc ncoc ncor ncos ncrc ncsc ncss ncst nctc nctr nknt nkok nkor nktr nnnn nnos nnot nnss nntn nock noco nocs noct noko non- nonn nono nons nont noo- nook noon nooo noor noos noot nor- norc nork norn noro norr nors nort nos- nosk noss nost not- noto nots nott nrcs nroc nron nrrc nrsc nrts nscc nscs nskk nsnr nsok nsos nsrc nssc nsso nssr nsss nstc nsts ntcc ntrc ntsc ntss ntto nttr occc occn occt ocks ocon ocos ocro ocrr ocrs oct- octo octs okko okno okok okon okor okot okro okso okto onc- onco onct onno onon onor onos onsc onso onst ont- ontc onto oocr oons oont oooo ooos oort oost oots orco orcs orko ornc orno orns oro- orok oron oror oros orot orro orrs orsk orso ortc orto orts oscc osco osno osnr osoo osor osos osro osso ostc ostr osts oto- otok oton otoo otor otos otro otrs otso otto otts rccc rccs rcnr rcon rcos rcsc rcss rctc rcts rkos rkss rkts rnco rncs rnnt rnot rocc rock roco rocs rokk roko rokr roks ronc ronk rono rons ront rook roon roor roos root rorc rork roro rort rosc roso ross rost rotc rotk rotn roto rotr rots rott rrrr rscc rscn rscs rsnn rsno rsnr rsos rsts rtcc rtkn rtns rtss rtts s-os sccc sccs scct sck- scnr scnt scok scon scoo scor scot scr- scrc scrn scrs scsc scsn scso scsr scst sctc sctn scto sctr scts skn- skon skor skot skrt skss sncc snco snns snoc snoo snor snos snot snrk snrs sntr sock soco socr socs sokk sokn soko son- sonk sono sons sont sook soon soor soos soot sorn soro sorr sors sort soso soss sost sotc sotk sotn soto sots srcc srct srnn srno sros srtr sscc sscs ssns ssoc ssot ssrc ssrs sssc ssss sstc ssts stcc stcs stks stnn stnr stns stok ston stoo stor stos stot strc strk strn stro strs stss sttc sttr tccc tcnn tcon tcos tctc tcts tkon tkos tkts tncc tnks tnts tock toco toko tonk tonn tono tons took toon toor toos toot torc tork torn toro torr tors tort tosc tosk toso toss tost totc toto totr tots tott trcc trno troc tron troo tros trot trst trtc trtr tscc tsks tsos tssr tsst tstc tsts ttcn tton ttss tttt