knots nkots konts oknts nokts onkts kntos nktos ktnos tknos ntkos tnkos kotns oktns ktons tkons otkns tokns notks ontks ntoks tnoks otnks tonks knost nkost konst oknst nokst onkst knsot nksot ksnot sknot nskot snkot kosnt oksnt ksont skont osknt soknt noskt onskt nsokt snokt osnkt sonkt kntso nktso ktnso tknso ntkso tnkso knsto nksto ksnto sknto nskto snkto ktsno tksno kstno sktno tskno stkno ntsko tnsko nstko sntko tsnko stnko kotsn oktsn ktosn tkosn otksn toksn kostn okstn ksotn skotn osktn soktn ktson tkson kston skton tskon stkon otskn toskn ostkn sotkn tsokn stokn notsk ontsk ntosk tnosk otnsk tonsk nostk onstk nsotk snotk osntk sontk ntsok tnsok nstok sntok tsnok stnok otsnk tosnk ostnk sotnk tsonk stonk
Note: these 'words' (valid or invalid) are all the permutations of the word knots. These words are obtained by scrambling the letters in knots.