c-- ccc cck cco ccr ccs ccu ckc cko cks co- coc cok coo cor cos cou crc crk cro crr crs cru csc csk cso csr css csu cuc cuk cuo cur cus cuu kcc kck kcr kcs kcu kkc kkk kkr kks kku koc kok koo kor kos kou krc krk kro krr krs kru ksc ksk kso ksr kss ksu kuc kuk kur kus kuu oc- occ ock oco ocr ocs ocu okc okk oko okr oks oku oo- ooc ook ooo oor oos or- orc ork oro orr ors oru os- osc osk oso osr oss osu ou- ouc ouk ouo our ous rcc rco rcr rcs rcu rkc rkk rko rks rku roc rok roo ror ros rou rrc rrk rrr rrs rru rsc rsk rso rsr rss rsu ruc ruk ruo rur rus ruu scc sck sco scr scs scu sk- skc skk sko skr sks sku soc sok soo sor sos sou sr- src srk sro srr srs ss- ssc ssk sso ssr sss ssu suc suk suo sur sus suu ucc uck uco ucr ucs ucu ukc ukk ukr uku uoc uok uoo uor uos ur- urc urk uro urr urs uru usc usk uso usr uss usu uuc uur uus uuu

-ous cccc cccs cccu ccoc ccrc ccrs ccss ccuc ccus ckck ckco ckcs ckoc ckoo ckor ckos ckrc ckso cock coco cocu cok- coko cook coos cor- corc cork coro corr cors cosc coso coss couk cour cous crcc crcr crkc croc crok croo cror crss cruk crus cscc csco cscr cscs csks csor csos csrc csrs cssr csur csus cucc cuck cuk- curo curr curs cusk cuso cuss cusu k-os kccc kcck kccr kccu kckc kckk kcko kckr kcor kcos kcou kcrc kcro kcrr kcrs kcru kcsc kcsr kcss kcsu kcuk kkck kkco kkcr kkcs kkkk kkoo kkor kkrc kkrk kkro kkrr kkrs kksr kkss kksu kkus kkuu kock kocs kokc kokk koko kokr koks koku kooc kook kooo koor koos koou korc kork koro korr kors koru kos- kosc koso kosr koss kosu kour kous kouu krcc krco krcs krcu krkc krkk krko krkr krks krku kroc krok kroo kror kros krrc krrk krro krrr krrs krsc krsk krsr krss krsu kruc kruk krur ksck ksco kscr kscs kscu kskk ksko kskr ksks ksku ksoc ksok ksoo ksor ksos ksou ksro ksrr ksrs ksso kssr ksss kssu ksuu kucc kuco kucr kukk kuks kuku kuok kuoo kuos kurk kuro kurr kurs kuru kusc kuso kusu kuuk kuur kuuu occc ocks ocos ocro ocrr ocrs ocur okcu okko okok okor okro okso okur okus oocr ooku oooo ooos oous orco orcs orko oro- orok oror oros orro orrs orsk orso orsu orus oscc osco osku osoo osor osos osro osso ossu oucc our- ouro ours ouu- rccc rccs rcos rcsc rcss rkos rkss rocc rock roco rocs rokk roko rokr roks roku rook roor roos rorc rork roro roru rosc roso ross rouk rous rrrr rscc rscs rsos ruck rukk ruku ruok rurc ruro rurs ruru rusk ruso russ rusu s-os sccc sccs sck- scok scoo scor scr- scrc scrs scsc scso scsr scsu scur skor skss skur sock soco socr socs sokk soko soku sook soor soos soro sorr sors soru soso soss souk sour sous srcc sros sscc sscs ssoc ssrc ssrs sssc ssss suc- succ suck sucr sucs suks suku suor suos sur- surc suro surr surs suru sus- susk suso suss susu suus ucos ucrc ucsc ucsu ukcc ukko ukok ukrc uksc ukur uocc uor- uro- urok uroo urso urss ursu uruk urur urus us-k uscc usco uscs usoc usos ussc ussr usss ussu usus uuoc uuuu

c-cor ccccc co-co cocc- cocco cocks cocos cocur cocus cokk- cooks coors corks coro- corrs corso corss corsu corus cosco couco cours couru crock croco crocs crook croos cross crouk crous cruck cruor cucks cucuk cukor cuoco curro currs cusco cusks cusso ko-ko kocks kocsk kokko kokor kokos kokou koksu kokur kooks kooru korck korku koror koros korro korso koruk korus kosku kosor kosso kours krock kroos kross krsko ksour kucso kucuk kukko kukok kuksu kukur kurku kuros kursk kuruc kuruk kurus kusuo kusur kuusk occur ockro ocros okkur okoc okoro okuku okuru oocss ooooo orcos orcus orkus oroco oroso orosu oruku oruro ososo ossos ossur osusu ouoro r-co- ro-ro rocco rocko rocks rocor rocou rokkk rokos rooks rosko rosso rosss rosu rouko rsock rucks rukus ruocs rusko rusks rusor russo s-k-o s-o-r scoor scors scouk scour scroo scrus scurr skoko skors skruk skurr skuru so-so socko socks socus sokos sooks sooru sorok soror soros sorsk sorso sorsu sorus soss- sosus souks sours sous- srock sssss suck- sucks sucr- sukko sukru sukuk sukur sursk suruk surur surus susso susuk susus urcos uros urour urous ursuk ursus urucu us-ks us-sc uscoc uskok usour uuork uuuuu

c-ross cocco- coccus cockos cococo cocous coocoo cookoo corcos coroso corour corros coruco coruro cosrou cossus couous courr- cousso crocco crocks crocus crooks cross- crucks cruro- cuckoo curour curror cursor cursus cururo cuscus k-rock kokoku kokoro kookoo korkor korkus kororo koruru kossos kossou koukou kouoro kouros kourou kousso krocks krokos krokus kukoc kurkcu kuroko kursko kururu kuskos kuskus occour occurs oksoko ookroo oooooo orosco orrock orrour ossous ououso ousrou roccus rococo rokkor rokuko rokuro rookus roucou ruccus ruckus rukkus ruocco ruscus russo- russus scocco scorus scours soccos soccus socoro socour sokoro sokoru sokour soosoo soroko sorors sorous sorrus sorsor soukos sourou sousou srocko succor succos succur succus sucro- sukkos sukkur sukoro suroso suruc susurr suuksu uskoks

coccous cooccur corosso corrour corsock corsour cou-cou crosso- cuckoos currock cursors cursour cururos cuscusu kokocko kokorou kor-kor korkoro korosko korucuk kos-kos krosuru kus-kus rocksoc rococco rococos soccour socorro sosruko sou-sou soukous sourock sssssss succoro succors succour succous succuss sukurcu suursoo usurous

co-occur cocoroco cooccurs corocoro corossos couscous cucurucu cursours curucucu kouskous koussour kukukuku kukuruku kurukuru rokkurro scorusu scurrour socorour souccour succours surucucu sussurus susurrus

co-occurs couroucou cuscousou cuss-cuss koukourou roocoocoo rusuccuru sous-sous suck-rock suck-suck surucucus susurrous

cooscoosoo couscousou