cccc ccci cccs ccic ccii ccir ccis ccoc ccrc ccri ccrs ccsi ccss cicc cici cico cicr cics ciii ciis ciko cikr cior cios circ ciri cirk ciro cirr cirs cis- cisc cisk cisr ciss cisy ckck ckco ckcs ckcy ckoc ckoi ckoo ckor ckos ckoy ckrc ckry ckso cock coco coir cois cok- coko coky cook coos cor- corc cori cork coro corr cors cory cosc cosi coso coss cosy coyo coyr coys crcc crcr cric crik cris crkc croc crok croo cror croy crss cry- cryo crys cscc csci csco cscr cscs csik csio csir csis csks csor csos csrc csrs cssr csys cyc- cycc cycs cyrk cyrs cyy- cyyc iccc icci icco iccr iccs icis icks icky icoc icor icos icrc icrr icrs icry icsc icsi icsr icss iiii iiio iiis iioi iioo iios iirc iirs iisc iisi iisr ikki ikko ikky ikoo ikri ioci ioii ioio ioko iooi iooo ioos iori iors ioso ircc ircs iri- iric irio iris iriy irki irks iroc irrc irri irrs iscc isci isco iscr iscs isic isis isko iso- isoc isok isor isos isri issc issi isso issr isss issy isys iyos k-ci k-os kccc kcci kcck kccr kccy kcic kcii kcir kcis kckc kckk kcko kckr kcky kcor kcos kcrc kcri kcro kcrr kcrs kcry kcsc kcsi kcsr kcss kcsy kcyk kcys kcyy kicc kick kicr kics kicy kiic kiii kiik kiis kikc kiki kikk kiko kikr kioc kioi kiok kioo kirc kiri kirk kiro kirr kirs kisc kisi kisk kiso kisr kiss kisy kiyi kiyk kiys kkci kkck kkco kkcr kkcs kkcy kkic kkik kkkk kkoo kkor kkoy kkrc kkrk kkro kkrr kkrs kksi kksr kkss kkyc kkys kkyy koci kock kocs koii koir kokc koki kokk koko kokr koks koky kooc kooi kook kooo koor koos korc kori kork koro korr kors kos- kosc kosi koso kosr koss kosy koyo koyy krcc krci krco krcs krik krio kris krkc krki krkk krko krkr krks krky kroc kroi krok kroo kror kros kroy krrc krri krrk krro krrr krrs krry krsc krsk krsr krss krsy kryk kryo kryy ksci ksck ksco kscr kscs kscy ksii ksik ksir ksis ksiy kskk ksko kskr ksks ksky ksoc ksoi ksok ksoo ksor ksos ksro ksrr ksrs ksry kssi ksso kssr ksss ksyc ksyr ksyy kycc kyck kycr kycs kyis kykc kykk kykr kyks kyky kyok kyoo kyor kyos kyoy kyrc kyrk kyro kyrs kysc kysk kysr kyyi kyyk kyyo kyys kyyy occc occi ocis ocks ocos ocro ocrr ocrs ocys oici oick oiii oiko oiks oios oiry oisc okic okir okko okok okor okro oksi okso okyo oocr ooky oooo ooos oory oosi orci orco orcs ori- oric orio oris orko oro- orok oror oros oroy orri orro orrs orry orsi orsk orso orsy orys oscc osci osco osii osik osis oski osoi osoo osor osos osro ossi osso ossy oyri oyss rccc rccs rcic rcis rcos rcsc rcsi rcss rcyc ricc rick rico rics riis riki rikk rios riri rirs risc risi risk riso riss riyo rkos rkss rocc rock roco rocs roik roio roir rois roki rokk roko rokr roks roky rooi rook roor roos rorc rori rork roro rory rosc rosi roso ross rosy roys rrrr rscc rscs rscy rsis rsos ryck ryis ryki rysy s-ic s-ii s-os sccc sccs sccy sci- scic scio scir scis sck- scok scoo scor scr- scrc scri scrs scry scsc scsi scso scsr sicc sici sick sico sics siik siki siko sikr siks sior sios sirc siri sirk siro sirr sirs sisc sisi sisk siss sisy siyi skic skik skio skir skis skor skss sky- skyr skys skyy soci sock soco socr socs socy soic soik soir sois soki sokk soko sook soor soos sooy sori soro sorr sors sory sosi soso soss soyo soys srcc sris sros sscc ssci sscs ssis ssoc ssrc ssri ssrs sssc sssi ssss syck syco sycr syik syis syro syrs syry syso syss syyk yccc yirk yirr yisk yiss ykko yksc yock yoik yoki yoko yoks yoky yook yori york yoro yory yosi yoso yoyo ysco ysii yyyy