cccc cccu ccoc cctc cctt ccuc ccut ckck ckco ckoc ckoo ckot cock coco coct cocu cok- coko cook coot cotc coto cott cotu couk cout ctot cucc cuck cuk- cut- cutc cuto cutt kccc kcck kcct kccu kckc kckk kcko kcot kcou kctc kcto kctu kcuk kkck kkco kkct kkkk kkoo kkot kktc kktk kktu kkut kkuu kock koct kokc kokk koko koku kooc kook kooo koot koou kotc kotk koto kott kotu kout kouu ktcc ktck ktco ktkc ktkk ktko ktkt ktku ktoc ktok ktoo ktot kttc kttk ktto kttt kttu ktuc kucc kuco kukk kuku kuok kuoo kuto kutt kutu kuuk kuuu occc occt oct- octo okcu okko okok okot okto ooku oooo oto- otok otoo otto ottu oucc out- outo ouu- tccc tccu tctc tock toco toko toku took toot totc toto tott touk tout tttt tucc tuck tuco tuko tuto tutt tutu tuuo ucut ukcc ukko ukok uocc utto uttu uuoc uuuu