cccc cccl cccp cccs cclc ccls ccoc ccpl ccpp ccpr ccps ccrc ccrl ccrp ccrs ccrt ccsl ccsp ccss ccst cctc cctl cctt ckck ckcl ckco ckcs ckoc ckoo ckor ckos ckot ckpc ckpr ckrc cksl ckso ckst ckts clok cloo clop clor clos clot clpp clro clrs clsc cltc clts cock coco cocp coct cok- coko col- colk coll colo colp cols colt cook cool coop coos coot copo copp copr cops copt cor- corc cork corl coro corp corr cors cort cosc cosl coso cosp coss cost cotc coto cots cott cpcs cplc cpls cpos cpps cprs cprt cpsc cpsk cpsl cpso cpsr cptp cptr cpts crcc crcr crkc crkl crkp crls croc crok crol croo crop cror crot crpc crps crrt crsp crss crst crtc crtl crtp crts cscc cscl csco cscr cscs csks cslp cslr csor csos csot cspc csps cspt csrc csrs cssr cstc csto cstr csts ctcp ctls ctol ctor ctos ctot ctpo ctpp ctps ctrc ctrl ctrp ctrs ctsc ctss ctts k-lo k-os kccc kcck kccl kccr kcct kckc kckk kckl kcko kckr kclc kclk kcll kclr kcls kclt kcol kcor kcos kcot kcpc kcpl kcpo kcpr kcps kcpt kcrc kcro kcrp kcrr kcrs kcrt kcsc kcsp kcsr kcss kcst kctc kcto kkck kkcl kkco kkcr kkcs kkct kkkk kklc kkll kklo kkls kkol kkoo kkor kkot kkpc kkpk kkpl kkps kkpt kkrc kkrk kkrl kkro kkrr kkrs kkrt kksp kksr kkss kkst kktc kktk kktl kkts klcc klck klcl klcr klcs klkc klkk klkl klko klkr klks kllc kllk kllp klls kloc klok klol kloo klop klor klos klpc klpr klrc klrk klrr klrs klsc klsr klst kltc kltk klto kltr kltt kock kocp kocs koct kokc kokk koko kokp kokr koks kolc kolk koll kolo kolr kols kolt kooc kook kool kooo koop koor koos koot kopp kopr kops kopt korc kork korl koro korr kors kort kos- kosc koso kosp kosr koss kost kotc kotk koto kotr kots kott kpcc kpcl kpcr kpcs kpkk kpkl kpkr kplc kplk kplo kplr kplt kpoc kpok kpol kpoo kpop kppc kppk kppl kppo kppp kppr kprc kprk kprl kpro kprp kprr kprs kprt kpsc kpso kpsp kptl kpto kptr kpts kptt krcc krcl krco krcs krkc krkk krko krkr krks krlc krlt kroc krok krol kroo krop kror kros krpl krpr krps krpt krrc krrk krrl krro krrr krrs krrt krsc krsk krsl krsr krss krst krtc krtk krto krtr krts ksck kscl ksco kscr kscs kskk ksko kskr ksks kslc kslk ksll kslo kslr kslt ksoc ksok ksol ksoo ksop ksor ksos kspc kspk kspl kspo kspr ksps kspt ksro ksrp ksrr ksrs ksrt kssl ksso kssr ksss ksst kstc kstk kstl ksto kstp kstr ksts kstt ktcc ktck ktcl ktco ktcr ktcs ktkc ktkk ktko ktkr ktks ktkt ktlk ktlo ktlr ktlt ktoc ktok ktoo ktop ktor ktot ktpk ktpl ktpo ktpr ktpt ktrc ktrk ktrl ktro ktrp ktrr ktrs ktrt ktsc ktsl ktso ktsr ktst kttc kttk ktto kttp kttr ktts kttt lccc lccs lcls lcor lcpc lcpl lcps lcrl lcrs lcsc lcsp lcsr lctl lcto lcts lkrs llcc llcs llks lllc llll lloc lloo llps locc lock loco locs lokk loko loll lolo lols looc look lool loop loor loos loot lopp lops lork loro lors losc loso losp loss lost lotl loto lotr lots lott lppl lprp lpsc lpss lrcs lroc lrps lrrc lrrr lrst lrts ls-r lsco lscs lspl lspr lsrc lsso lssp lssr lsts ltcc ltcs ltps ltrs ltsp ltsr lttc lttr occc occt ocks oclc ocos ocpp ocrl ocro ocrr ocrs oct- octo octs okko oklo okok okol okor okot okpo okro okso okto olcc ollo olor olos olot olpc olst oocr oolo oooo ooos oops oort oost ootp oots opls opo- opor opos oppo opps opto opts orco orcs orko orlo oro- orok oror oros orot orpc orps orro orrs orsk orso ortc orto orts oscc oscl osco oslo osoo osor osos osro osso ostc ostr osts otcl oto- otok otoo otor otos otpp otro otrs otso otto otts pccc pccl pccs pcks pclk pcll pclo pcos pcpp pcps pcrc pcrl pcso pcts pkcs pklr pkts plcc plkk ploc plok ploo plop plos plot plpp plss pltt pock poco pocs poko polk poll polo pols polt pook pool poop poor poos poot pop- popc popo popp pops popt porc pork poro porr pors port posk poso poss post potc poto pots pott ppcc ppcs pplo ppos pppo pppp ppps pprc ppss ppts pptt prcc prcp prcs prlr prls pro- proc prol proo prop pros prot prps prrs prsc prsl prso prss prtc prtp prtr psco psoc psol psos pspp pspr psps psrk psrp pssc psso psst psts ptcc ptcl ptol ptop pttc pttk rccc rccs rcls rcos rcpo rcps rcpt rcsc rcsl rcss rctc rcts rkos rkss rkts rlcs rlls rocc rock roco rocs rokk roko rokr roks rolk roll rolo rolp rolt rook rool roop roor roos root ropo rops rorc rork roro rort rosc roso rosp ross rost rotc rotk rotl roto rotr rots rott rpcs rpls rpos rpps rpts rrrr rrsp rscc rscs rslc rslp rsos rspk rspo rsps rssl rstp rsts rtcc rtls rtlt rtps rtss rttp rtts s-os sccc sccl sccp sccs scct sck- sckl scl- sclc sclk scls scok scol scoo scop scor scot scpl scpo scps scpt scr- scrc scrs scsc scsl scso scsr scst sctc sctl scto sctr scts skol skop skor skot skpc skpo skrt skss slcc sllp sloc sloo slop slos slot slpp slps slrc slrp slrs slsc slst slts sock socl soco socr socs sokk soko solk soll solo solp solr sols solt sook sool soop soor soos soot sopo sopp sops soro sorr sors sort soso soss sost sotc sotk sotl soto sotp sots spcc spco spcs spkl spkr splc splo splp splr spls spoc spok spoo spop spor spos spot spps spro sprs spso spsp spss spst sptc spto sptr spts srcc srct sros srpc srps srpt srsp srtp srtr sscc