cccc cccp cccs ccnc ccnp ccnr ccns ccoc ccpn ccpp ccpr ccps ccrc ccrp ccrs ccsn ccsp ccss ckck ckco ckcs cknc ckns ckoc ckoo ckor ckos ckpc ckpr ckrc ckso cnco cncp cnrc cnrr cnss cock coco cocp cok- coko con- conc conk conn cono cons cook coon coop coos copo copp copr cops cor- corc cork corn coro corp corr cors cosc coso cosp coss cpcs cpns cpos cpps cprs cpsc cpsk cpso cpsr crcc crcr crkc crkp crns croc crok cron croo crop cror crpc crps crsp crss cscc csco cscr cscs csks csnp csor csos cspc csps csrc csrs cssr k-os kccc kcck kccr kckc kckk kckn kcko kckr kcno kcnp kcnr kcns kcon kcor kcos kcpc kcpn kcpo kcpr kcps kcrc kcrn kcro kcrp kcrr kcrs kcsc kcsn kcsp kcsr kcss kkck kkcn kkco kkcr kkcs kkkk kknn kkno kkns kkon kkoo kkor kkpc kkpk kkpn kkps kkrc kkrk kkrn kkro kkrr kkrs kksn kksp kksr kkss knck kncn knco kncr knkk knnk knnr knns knoc knok knon knop knor knpc knpr knrk knro knrs knsc knsk knsn knso knsp knsr knss kock kocn kocp kocs kokc kokk kokn koko kokp kokr koks konc konk kono konp kooc kook koon kooo koop koor koos kopn kopp kopr kops korc kork korn koro korr kors kos- kosc koso kosp kosr koss kpcc kpcr kpcs kpkk kpkr kpnc kpno kpnp kpns kpoc kpok kpoo kpop kppc kppk kppo kppp kppr kprc kprk kprn kpro kprp kprr kprs kpsc kpso kpsp krcc krcn krco krcs krkc krkk krkn krko krkr krks krnk krnn krno krnp kroc krok kroo krop kror kros krpr krps krrc krrk krrn krro krrr krrs krsc krsk krsn krsr krss ksck kscn ksco kscr kscs kskk kskn ksko kskr ksks ksnc ksnk ksnn ksnp ksnr ksns ksoc ksok kson ksoo ksop ksor ksos kspc kspk kspn kspo kspr ksps ksrn ksro ksrp ksrr ksrs kssn ksso kssr ksss nccc nccn nccp nccr nccs ncnc ncoc ncor ncos ncpc ncrc ncrp ncsc ncss nkok nkor nksp nnnn nnos nnpr nnss nock noco nocs noko non- nonn nono nons noo- nook noon nooo noop noor noos nops nor- norc nork norn noro norr nors nos- nosk noss npcc nppc npss nrcs nroc nron nrpc nrpn nrps nrrc nrsc nrsp nscc nscs nskk nsnr nsok nsos nspc nsps nsrc nssc nsso nssp nssr nsss occc occn ocks ocon ocos ocpp ocro ocrr ocrs okko okno okok okon okor okpo okro okso onc- onco onkp onno onon onor onos onsc onso oocr oons oooo ooos oops opo- opon opor opos oppo opps orco orcs orko ornc orno orns oro- orok oron oror oros orpc orps orro orrs orsk orso oscc osco osno osnr osoo osor osos osro osso pccc pccs pcks pcns pcos pcpn pcpp pcps pcrc pcso pkcs pnkp pnon pnpo pnpp pnro pnsc pock poco pocs poko ponc ponk pono ponp pons pook poon poop poor poos pop- popc popo popp pops porc pork porn poro porr pors posk posn poso poss ppcc ppcs ppos pppn pppo pppp ppps pprc ppss prcc prcp prcs prnp pro- proc pron proo prop pros prps prrs prsc prso prss psco psnc psnr psoc pson psos pspp pspr psps psrk psrp pssc psso rccc rccs rcnr rcon rcos rcpo rcps rcsc rcss rkos rkss rnco rncp rncs rnsp rocc rock roco rocs rokk roko rokr roks ronc ronk rono rons rook roon roop roor roos ropo rops rorc rork roro rosc roso rosp ross rpcs rpon rpos rppn rpps rrrr rrsp rscc rscn rscs rsnn rsno rsnr rsos rspk rspo rsps s-os sccc sccp sccs sck- scnr scok scon scoo scop scor scpo scps scr- scrc scrn scrs scsc scsn scso scsr skn- skon skop skor skpc skpo skss sncc snco sncp snns snoc snoo snop snor snos snpo snpp snrk snrs sock soco socr socs sokk sokn soko son- sonk sono sons sook soon soop soor soos sopo sopp sops sorn soro sorr sors soso soss spcc spco spcs spkr spns spoc spok spon spoo spop spor spos spps spro sprs spso spsp spss srcc srnn srno sros srpc srps srsp sscc sscp sscs ssns ssoc ssop sspc sspo ssps ssrc ssrs sssc ssss