phuts hputs puhts uphts hupts uhpts phtus hptus pthus tphus htpus thpus puths upths ptuhs tpuhs utphs tuphs hutps uhtps htups thups uthps tuhps phust hpust puhst uphst hupst uhpst phsut hpsut pshut sphut hsput shput pusht upsht psuht spuht uspht supht huspt uhspt hsupt shupt ushpt suhpt phtsu hptsu pthsu tphsu htpsu thpsu phstu hpstu pshtu sphtu hsptu shptu ptshu tpshu psthu spthu tsphu stphu htspu thspu hstpu shtpu tshpu sthpu putsh uptsh ptush tpush utpsh tupsh pusth upsth psuth sputh uspth supth ptsuh tpsuh pstuh sptuh tspuh stpuh utsph tusph ustph sutph tsuph stuph hutsp uhtsp htusp thusp uthsp tuhsp hustp uhstp hsutp shutp ushtp suhtp htsup thsup hstup shtup tshup sthup utshp tushp usthp suthp tsuhp stuhp
Note: these 'words' (valid or invalid) are all the permutations of the word phuts. These words are obtained by scrambling the letters in phuts.