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