cccc cccu ccnc ccnr ccnu ccoc ccrc ccrt cctc cctt ccuc ccut ckck ckco cknc cknt ckoc ckoo ckor ckot ckrc cnco cnrc cnrr cnrt cntc cntk cntr cnut cock coco coct cocu cok- coko con- conc conk conn cono cont cook coon coot cor- corc cork corn coro corr cort cotc cotn coto cott cotu couk coun cour cout crcc crcr crkc croc crok cron croo cror crot crrt crtc cruk crun crut ctor ctot ctrc ctrn cttn cucc cuck cucn cuk- cuno cunt cuon curn curo curr curt cut- cutc cuto cutt kccc kcck kccr kcct kccu kckc kckk kckn kcko kckr kcno kcnr kcnt kcon kcor kcot kcou kcrc kcrn kcro kcrr kcrt kcru kctc kctn kcto kctu kcuk kkck kkcn kkco kkcr kkct kkkk kknn kkno kknt kknu kkon kkoo kkor kkot kkrc kkrk kkrn kkro kkrr kkrt kktc kktk kktu kkut kkuu knck kncn knco kncr knct kncu knkk knkt knnk knnr knoc knok knon knor knot knou knrk knro kntk kntn knto kntr kntu knuk knur knut kock kocn koct kokc kokk kokn koko kokr koku konc konk kono kont kooc kook koon kooo koor koot koou korc kork korn koro korr kort koru kotc kotk kotn koto kotr kott kotu kour kout kouu krcc krcn krco krcu krkc krkk krkn krko krkr krku krnk krnn krno krnt krnu kroc krok kroo kror krrc krrk krrn krro krrr krrt krtc krtk krtn krto krtr kruc kruk krun krur ktcc ktck ktco ktcr ktkc ktkk ktkn ktko ktkr ktkt ktku ktnc ktnk ktnn ktno ktnt ktoc ktok kton ktoo ktor ktot ktrc ktrk ktrn ktro ktrr ktrt ktru kttc kttk kttn ktto kttr kttt kttu ktuc ktun kucc kuco kucr kukk kukn kuku kunc kunk kuno kunr kunt kunu kuok kuon kuoo kurk kuro kurr kurt kuru kuto kutr kutt kutu kuuk kuur kuuu nccc nccn nccr ncct nccu ncnc ncoc ncor ncrc nctc nctr ncuk nknt nkok nkor nktr nnnn nnot nntn nock noco noct noko non- nonn nono nont nonu noo- nook noon nooo noor noot nor- norc nork norn noro norr nort not- noto nott noun nour nout nroc nron nrrc ntcc ntnu ntrc ntru ntto nttr ntuc nuck nucu nuku nunc nunk nunn nuno nunt nuoc nuon nurc nurn nurr nurt nuru nutt nutu nuuk occc occn occt ocon ocro ocrr oct- octo ocur okcu okko okno okok okon okor okot okro okto okun okur onc- onco onct onno onon onor ont- ontc onto onur onut oocr ooku oont oooo oort orco orko ornc orno oro- orok oron oror orot orro ortc orto oto- otok oton otoo otor otro otto ottu otur oucc oun- our- ourn ouro ourt out- outo ouu- rccc rcnr rcon rctc rnco rnnt rnot rnut rocc rock roco rokk roko rokr roku ronc ronk rono ront rook roon roor root rorc rork roro rort roru rotc rotk rotn roto rotr rott rouk roun rout rrrr rrun rtcc rtkn ruck ruct rukk rukn ruku runc runk runn runo runt ruok rurc ruro ruru ruto rutt rutu ruun tccc tccu tcnn tcon tctc tkon tncc tnut tock toco toko toku tonk tonn tono tonu took toon toor toot torc tork torn toro torr tort toru totc toto totr tott touk toun tour tout trcc trno troc tron troo trot trou trtc trtr truc truk trun trut truu ttcn tton tttt tucc tuck tuco tuko tunc tunk tunn tuno tunu tuor turc turk turn turo turr turt turu tuto tutt tutu tuuo ucon ucrc ucut ukcc ukko uknc ukok ukon ukrc ukur uncc unco unct unkn unko unno unon unro unto unut uocc uor- uro- urok uroo uruk urun urur urut utor utto uttu uuno uuoc uuuu