xysti yxsti xsyti sxyti ysxti syxti xytsi yxtsi xtysi txysi ytxsi tyxsi xstyi sxtyi xtsyi txsyi stxyi tsxyi ystxi sytxi ytsxi tysxi styxi tsyxi xysit yxsit xsyit sxyit ysxit syxit xyist yxist xiyst ixyst yixst iyxst xsiyt sxiyt xisyt ixsyt sixyt isxyt ysixt syixt yisxt iysxt siyxt isyxt xytis yxtis xtyis txyis ytxis tyxis xyits yxits xiyts ixyts yixts iyxts xtiys txiys xitys ixtys tixys itxys ytixs tyixs yitxs iytxs tiyxs ityxs xstiy sxtiy xtsiy txsiy stxiy tsxiy xsity sxity xisty ixsty sixty isxty xtisy txisy xitsy ixtsy tixsy itxsy stixy tsixy sitxy istxy tisxy itsxy ystix sytix ytsix tysix styix tsyix ysitx syitx yistx iystx siytx isytx ytisx tyisx yitsx iytsx tiysx itysx stiyx tsiyx sityx istyx tisyx itsyx
Note: these 'words' (valid or invalid) are all the permutations of the word xysti. These words are obtained by scrambling the letters in xysti.