cccc cccl cclc ccnc ccoc cctc cctl cctt ckck ckcl ckco ckln cknc cknt ckoc ckoo ckot clok clon cloo clot cltc cnco cntc cntk cock coco coct cok- coko col- colk coll coln colo colt con- conc conk conn cono cont cook cool coon coot cotc cotn coto cott ctol ctot cttn k-lo kccc kcck kccl kcct kckc kckk kckl kckn kcko kclc kclk kcll kcln kclt kcno kcnt kcol kcon kcot kctc kctn kcto kkck kkcl kkcn kkco kkct kkkk kklc kkll kkln kklo kknn kkno kknt kkol kkon kkoo kkot kktc kktk kktl klcc klck klcl klcn klkc klkk klkl klkn klko kllc kllk klnc klnn klno klnt kloc klok klol klon kloo kltc kltk kltn klto kltt knck kncn knco knct knkk knkt knlc knlt knnk knoc knok knol knon knot kntk kntn knto kock kocn koct kokc kokk kokn koko kolc kolk koll koln kolo kolt konc konk kono kont kooc kook kool koon kooo koot kotc kotk kotn koto kott ktcc ktck ktcl ktco ktkc ktkk ktkn ktko ktkt ktlk ktln ktlo ktlt ktnc ktnk ktnl ktnn ktno ktnt ktoc ktok kton ktoo ktot kttc kttk kttn ktto kttt lccc lctl lcto llcc lllc llll lloc lloo lnnk lntc locc lock locn loco lokk loko loll lolo lonk lono lont looc look lool loon loot lotl loto lott ltcc ltnt lttc nccc nccn ncct nclc ncln ncnc ncoc nctc nknt nkok nlcc nnnn nnot nntn nock nocl noco noct noko noll nolo nolt non- nonn nono nont noo- nook nool noon nooo noot not- noto nott ntcc ntto occc occn occt oclc ocon oct- octo okko oklo okno okok okol okon okot okto olcc ollo olon olot onc- onco onct onno onon ont- ontc onto oolo oont oooo otcl oto- otok oton otoo otto tccc tcnn tcon tctc tkol tkon tlco tlon tncc tock toco toko tol- tolk toll tolo tolt tonk tonn tono took tool toon toot totc toto tott ttcn tton tttt