knows nkows konws oknws nokws onkws knwos nkwos kwnos wknos nwkos wnkos kowns okwns kwons wkons owkns wokns nowks onwks nwoks wnoks ownks wonks knosw nkosw konsw oknsw noksw onksw knsow nksow ksnow sknow nskow snkow kosnw oksnw ksonw skonw osknw soknw noskw onskw nsokw snokw osnkw sonkw knwso nkwso kwnso wknso nwkso wnkso knswo nkswo ksnwo sknwo nskwo snkwo kwsno wksno kswno skwno wskno swkno nwsko wnsko nswko snwko wsnko swnko kowsn okwsn kwosn wkosn owksn woksn koswn okswn ksown skown oskwn sokwn kwson wkson kswon skwon wskon swkon owskn woskn oswkn sowkn wsokn swokn nowsk onwsk nwosk wnosk ownsk wonsk noswk onswk nsowk snowk osnwk sonwk nwsok wnsok nswok snwok wsnok swnok owsnk wosnk oswnk sownk wsonk swonk
Note: these 'words' (valid or invalid) are all the permutations of the word knows. These words are obtained by scrambling the letters in knows.