shott hsott sohtt oshtt hostt ohstt shtot hstot sthot tshot htsot thsot sotht ostht stoht tsoht otsht tosht hotst ohtst htost thost othst tohst shott hsott sohtt oshtt hostt ohstt shtot hstot sthot tshot htsot thsot sotht ostht stoht tsoht otsht tosht hotst ohtst htost thost othst tohst shtto hstto sthto tshto htsto thsto shtto hstto sthto tshto htsto thsto sttho tstho sttho tstho ttsho ttsho httso thtso httso thtso tthso tthso sotth ostth stoth tsoth otsth tosth sotth ostth stoth tsoth otsth tosth sttoh tstoh sttoh tstoh ttsoh ttsoh ottsh totsh ottsh totsh ttosh ttosh hotts ohtts htots thots othts tohts hotts ohtts htots thots othts tohts httos thtos httos thtos tthos tthos otths toths otths toths ttohs ttohs
Note: these 'words' (valid or invalid) are all the permutations of the word shott. These words are obtained by scrambling the letters in shott.