erest reest eerst eerst reest erest erset reset esret seret rseet sreet eesrt eesrt esert seert esert seert reset erset rseet sreet esret seret erets reets eerts eerts reets erets ertes retes etres teres rtees trees eetrs eetrs eters teers eters teers retes ertes rtees trees etres teres erste reste esrte serte rsete srete ertse retse etrse terse rtese trese estre setre etsre tesre stere tsere rstee srtee rtsee trsee stree tsree eestr eestr esetr seetr esetr seetr eetsr eetsr etesr teesr etesr teesr ester seter etser teser steer tseer ester seter etser teser steer tseer reste erste rsete srete esrte serte retse ertse rtese trese etrse terse rstee srtee rtsee trsee stree tsree estre setre etsre tesre stere tsere
Note: these 'words' (valid or invalid) are all the permutations of the word erest. These words are obtained by scrambling the letters in erest.