cccc cccl cclc ccnc ccoc ckck ckcl ckco ckln cknc ckoc ckoo clok clon cloo cnco cock coco cok- coko col- colk coll coln colo con- conc conk conn cono cook cool coon k-lo kccc kcck kccl kckc kckk kckl kckn kcko kclc kclk kcll kcln kcno kcol kcon kkck kkcl kkcn kkco kkkk kklc kkll kkln kklo kknn kkno kkol kkon kkoo klcc klck klcl klcn klkc klkk klkl klkn klko kllc kllk klnc klnn klno kloc klok klol klon kloo knck kncn knco knkk knlc knnk knoc knok knol knon kock kocn kokc kokk kokn koko kolc kolk koll koln kolo konc konk kono kooc kook kool koon kooo lccc llcc lllc llll lloc lloo lnnk locc lock locn loco lokk loko loll lolo lonk lono looc look lool loon nccc nccn nclc ncln ncnc ncoc nkok nlcc nnnn nock nocl noco noko noll nolo non- nonn nono noo- nook nool noon nooo occc occn oclc ocon okko oklo okno okok okol okon olcc ollo olon onc- onco onno onon oolo oooo