cccc cccf ccci cccs ccfc ccff ccfi ccic ccii ccir ccis cciw cckw ccoc ccow ccrc ccrf ccri ccrs ccsf ccsi ccss cfcf cfco cfcs cfcw cffr cfor cfos cfrw cfsi cfwc cicc cici cico cicr cics ciff cifs ciii ciis ciko cikr cior cios circ ciri cirk ciro cirr cirs cis- cisc cisk cisr ciss ciws ciww ckck ckco ckcs ckcw ckfi ckfr ckoc ckoi ckoo ckor ckos ckrc ckrw ckso cksw ckwr ckws ckww cock coco cofc coff cofi cofs coif coir cois cok- coko coof cook coos cor- corc corf cori cork coro corr cors cosc cosi coso coss cows crcc crcr crfc crfs cric crif crik cris crkc croc crok croo cror crow crss cscc cscf csci csco cscr cscs csfc csfr csik csio csir csis csks csor csos csrc csrs cssr cswk csws cwfc cwis cwos cwrw cwsf f--k fccf fcic fcii fcsc ffcc ffff ffii ffrr ffss ficc fick fico fics fifc fiff fifi fifo fiii fiki fior fios firk firs fisc fisi fisk fiss foci fock foco focs fofo fois foki foof fook foos for- fori fork foro forr fors fosi foso foss fowk frcc frfc fric frik frio fris fros frow frsc frso fscc fsck fsfi fsfo fssc fssf fwcc fwfc fwiw iccc iccf icci icco iccr iccs icis icks icoc icor icos icrc icrf icrr icrs icrw icsc icsi icsr icss icws ifco ific ifis ifor ifrf ifri ifsc ifso iiii iiio iiis iioi iioo iios iirc iirs iisc iisi iisr iiwi ikki ikko ikoo ikri ikwo ioci iofc ioii ioio ioko ioof iooi iooo ioos iori iors ioso ircc ircs iri- iric irio iris irki irks iroc irrc irri irrs irsf iscc isci isco iscr iscs isfc isic isis iskf isko iso- isoc isof isok isor isos isri issc issf issi isso issr isss iswc iwcc iwis iwiw k-ci k-os kccc kcci kcck kccr kcfc kcfi kcfo kcic kcif kcii kcir kcis kckc kckf kckk kcko kckr kcof kcor kcos kcow kcrc kcri kcro kcrr kcrs kcrw kcsc kcsf kcsi kcsr kcss kcwc kcwf kcwk kcwr kfcf kfco kfcr kfcs kfcw kfff kffk kfio kfir kfis kfok kfoo kfor kfrc kfri kfro kfrr kfrs kfrw kfsi kfsk kfsr kfsw kfwr kicc kick kicr kics kicw kiff kifr kifs kifw kiic kiii kiik kiis kikc kikf kiki kikk kiko kikr kioc kioi kiok kioo kiow kirc kirf kiri kirk kiro kirr kirs kisc kisf kisi kisk kiso kisr kiss kisw kiwi kiwr kkci kkck kkco kkcr kkcs kkcw kkfi kkfr kkfs kkic kkik kkkk kkoo kkor kkow kkrc kkrf kkrk kkro kkrr kkrs kksf kksi kksr kkss kksw kkwf kkwk kkws kocf koci kock kocs kocw kofc koff kofi kofk kofo koii koir kokc kokf koki kokk koko kokr koks kooc kooi kook kooo koor koos korc korf kori kork koro korr kors kos- kosc kosf kosi koso kosr koss kowi kowr krcc krci krco krcs krcw krfc krff krfo krfs krik krio kris krkc krki krkk krko krkr krks krkw kroc krof kroi krok kroo kror kros krow krrc krrf krri krrk krro krrr krrs krrw krsc krsf krsk krsr krss krsw krwc krwk krwr ksci ksck ksco kscr kscs ksfc ksfi ksfo ksfr ksif ksii ksik ksir ksis ksiw kskf kskk ksko kskr ksks ksoc ksof ksoi ksok ksoo ksor ksos ksow ksrf ksro ksrr ksrs ksrw kssi ksso kssr ksss kswc kswf kswi kswo ksws ksww kwck kwcr kwfc kwfr kwfs kwic kwik kwkc kwkk kwkr kwkw kwoc kwof kwok kwor kwos kwow kwrf kwri kwrk kwro kwrr kwrs kwrw kwsc kwsk kwso kwss kwsw kwwf kwwk kwwr kwws occc occi ocis ocks ocos ocro ocrr ocrs ocsw ofcr off- offc offo offr offs ofik ofor oici oick oiii oiko oiks oios oisc okic okir okko okok okor okro oksi okso oocr ooff oofs oooo ooos oosi orci orco orcs orff orfi orfs ori- oric orif orio oris orko oro- orof orok oror oros orri orro orrs orsi orsk orso orwo oscc osci osco osii osik osis oski osoi osoo osor osos osow osro ossi osso owir owow rccc rccs rcfc rcic rcis rcos rcsc rcsi rcss rffc rfic ricc rick rico rics riff rifs riif riis riki rikk rios riri rirs risc risi risk riso riss riwo rkkf rkos rkss rocc rock roco rocs rofc roff rofo roif roik roio roir rois roki rokk roko rokr roks roof rooi rook roor roos rorc rori rork roro rosc rosi roso ross rowf rowi rowk rowr rows roww rrfc rrif rrrr rscc rscs rsfc rsis rsos rwcs rwik s-ic s-ii s-os sccc sccs scfc scfi sci- scic scif scio scir scis sck- scok scoo scor scow scr- scrc scri scrs scsc scsi scso scsr sfcc sfco sfcs sfcw sffc sfio sfor sfos sfrc sfro sfss sicc sici sick sico sics siff sifo sifr siik siki siko sikr siks sior sios sirc sirf siri sirk siro sirr sirs sisc sisi sisk siss siwi skfc skic skif skik skio skir skis skor skow skss skws soci sock soco socr socs sofi sofo soic soif soik soir sois soki sokk soko soof sook soor soos sori soro sorr sors sosi soso soss sowf sowi sowk sowr sows srcc srfc srfi sris sros sscc ssci sscs ssfc ssis ssoc ssrc ssri ssrs sssc sssf sssi ssss ssws swcc swfc swic swir swis swoo swor swow swss wccc wccf wcci wcck wcco wccr wccs wccw wcfc wcfi wcfo wcfr wcfs wcfw wcic wcif wcii wcik wcir wcis wckf wcki wckk wckr wcks wckw wcoc wcok wcoo wcor wcos wcrc wcri wcrk wcro wcrr wcrs wcrw wcsc wcsf wcsi wcsk wcso wcsr wcss wcsw wcwc wcwf wcwi wfcc wfcf wfci wfco wfcr wfcs wffc wfff wfic wfif wfir wfis wfiw wfks wfor wfos wfrc wfrf wfrk wfro wfrs wfrw wfsc wfsi wfso wfsr wfss wfwc wfwi wfwo wicc wici wick wico wicr wics wifc wiff wifi wifo wifr wiif wiii wiik wiis wiki wikk wiko wiks wioc wioi wiok wioo wios wiri wirk wiro wirr