cccc ccnc ccoc cctc cctt ckck ckco cknc cknt ckoc ckoo ckot cnco cntc cntk cock coco coct cok- coko con- conc conk conn cono cont cook coon coot cotc cotn coto cott ctot cttn kccc kcck kcct kckc kckk kckn kcko kcno kcnt kcon kcot kctc kctn kcto kkck kkcn kkco kkct kkkk kknn kkno kknt kkon kkoo kkot kktc kktk knck kncn knco knct knkk knkt knnk knoc knok knon knot kntk kntn knto kock kocn koct kokc kokk kokn koko konc konk kono kont kooc kook koon kooo koot kotc kotk kotn koto kott ktcc ktck ktco ktkc ktkk ktkn ktko ktkt ktnc ktnk ktnn ktno ktnt ktoc ktok kton ktoo ktot kttc kttk kttn ktto kttt nccc nccn ncct ncnc ncoc nctc nknt nkok nnnn nnot nntn nock noco noct noko non- nonn nono nont noo- nook noon nooo noot not- noto nott ntcc ntto occc occn occt ocon oct- octo okko okno okok okon okot okto onc- onco onct onno onon ont- ontc onto oont oooo oto- otok oton otoo otto tccc tcnn tcon tctc tkon tncc tock toco toko tonk tonn tono took toon toot totc toto tott ttcn tton tttt