stupe tsupe sutpe ustpe tuspe utspe stpue tspue sptue pstue tpsue ptsue supte uspte spute psute upste puste tupse utpse tpuse ptuse uptse putse stuep tsuep sutep ustep tusep utsep steup tseup setup estup tesup etsup suetp usetp seutp esutp uestp eustp tuesp utesp teusp etusp uetsp eutsp stpeu tspeu spteu psteu tpseu ptseu stepu tsepu setpu estpu tespu etspu spetu psetu septu esptu pestu epstu tpesu ptesu tepsu etpsu petsu eptsu supet uspet spuet psuet upset puset suept usept seupt esupt uespt euspt speut pseut seput esput pesut epsut upest puest uepst eupst peust epust tupes utpes tpues ptues uptes putes tueps uteps teups etups uetps eutps tpeus pteus tepus etpus petus eptus upets puets uepts eupts peuts eputs
Note: these 'words' (valid or invalid) are all the permutations of the word stupe. These words are obtained by scrambling the letters in stupe.