twist wtist tiwst itwst witst iwtst twsit wtsit tswit stwit wstit swtit tiswt itswt tsiwt stiwt istwt sitwt wistt iwstt wsitt switt iswtt siwtt twits wtits tiwts itwts witts iwtts twtis wttis ttwis ttwis wttis twtis titws ittws ttiws ttiws ittws titws witts iwtts wtits twits itwts tiwts twsti wtsti tswti stwti wstti swtti twtsi wttsi ttwsi ttwsi wttsi twtsi tstwi sttwi ttswi ttswi sttwi tstwi wstti swtti wtsti twsti stwti tswti tistw itstw tsitw stitw isttw sittw titsw ittsw ttisw ttisw ittsw titsw tstiw sttiw ttsiw ttsiw sttiw tstiw isttw sittw itstw tistw stitw tsitw wistt iwstt wsitt switt iswtt siwtt witst iwtst wtist twist itwst tiwst wstit swtit wtsit twsit stwit tswit istwt sitwt itswt tiswt stiwt tsiwt
Note: these 'words' (valid or invalid) are all the permutations of the word twist. These words are obtained by scrambling the letters in twist.