cccc cccf cccu ccfc ccff ccoc ccrc ccrf ccuc cfcf cfco cffr cfor ckck ckco ckfr ckoc ckoo ckor ckrc cock coco cocu cofc coff cok- coko coof cook cor- corc corf cork coro corr couk cour crcc crcr crfc crkc croc crok croo cror cruk cucc cuck cufc cuff cufo cuk- curf curo curr f--k fccf fcuk ffcc ffff ffrr fock foco fofo foof fook for- fork foro forr four frcc frfc frou fuc- fuck fufc fuff fufu fukk fuko fuku fuor fur- furo furr kccc kcck kccr kccu kcfc kcfo kckc kckf kckk kcko kckr kcof kcor kcou kcrc kcro kcrr kcru kcuf kcuk kfcf kfco kfcr kfff kffk kfok kfoo kfor kfrc kfro kfrr kfru kfuo kkck kkco kkcr kkfr kkkk kkoo kkor kkrc kkrf kkrk kkro kkrr kkuu kocf kock kofc koff kofk kofo kofu kokc kokf kokk koko kokr koku kooc kook kooo koor koou korc korf kork koro korr koru kour kouu krcc krco krcu krfc krff krfo krkc krkk krko krkr krku kroc krof krok kroo kror krrc krrf krrk krro krrr kruc kruf kruk krur kucc kuco kucr kufc kuff kufo kufr kukk kuku kuok kuoo kurk kuro kurr kuru kuuk kuur kuuu occc ocro ocrr ocur ofcr off- offc offo offr offu ofor okcu okko okok okor okro okur oocr ooff ooku oooo orco orff orfu orko oro- orof orok oror orro oucc oufc ouff our- ouro ouu- rccc rcfc rffc rkkf rocc rock roco rofc roff rofo rokk roko rokr roku roof rook roor rorc rork roro roru rouf rouk rrfc rrrr ruck rufc ruff rufo rukk ruku ruok rurc ruro ruru ucrc ufcu ufuk ukcc ukko ukok ukrc ukur uocc uofo uor- urff uro- urok uroo uruk urur uuoc uuuu