theow hteow tehow ethow hetow ehtow thoew htoew tohew othew hotew ohtew teohw etohw toehw otehw eothw oethw heotw ehotw hoetw ohetw eohtw oehtw thewo htewo tehwo ethwo hetwo ehtwo thweo htweo twheo wtheo hwteo whteo tewho etwho tweho wteho ewtho wetho hewto ehwto hweto wheto ewhto wehto thowe htowe tohwe othwe hotwe ohtwe thwoe htwoe twhoe wthoe hwtoe whtoe towhe otwhe twohe wtohe owthe wothe howte ohwte hwote whote owhte wohte teowh etowh toewh otewh eotwh oetwh tewoh etwoh tweoh wteoh ewtoh wetoh toweh otweh twoeh wtoeh owteh woteh eowth oewth ewoth weoth oweth woeth heowt ehowt hoewt ohewt eohwt oehwt hewot ehwot hweot wheot ewhot wehot howet ohwet hwoet whoet owhet wohet eowht oewht ewoht weoht oweht woeht
Note: these 'words' (valid or invalid) are all the permutations of the word theow. These words are obtained by scrambling the letters in theow.