pyxes ypxes pxyes xpyes yxpes xypes pyexs ypexs peyxs epyxs yepxs eypxs pxeys xpeys pexys epxys xepys expys yxeps xyeps yexps eyxps xeyps exyps pyxse ypxse pxyse xpyse yxpse xypse pysxe ypsxe psyxe spyxe yspxe sypxe pxsye xpsye psxye spxye xspye sxpye yxspe xyspe ysxpe syxpe xsype sxype pyesx ypesx peysx epysx yepsx eypsx pysex ypsex psyex spyex yspex sypex pesyx epsyx pseyx speyx espyx sepyx yespx eyspx ysepx syepx esypx seypx pxesy xpesy pexsy epxsy xepsy expsy pxsey xpsey psxey spxey xspey sxpey pesxy epsxy psexy spexy espxy sepxy xespy exspy xsepy sxepy esxpy sexpy yxesp xyesp yexsp eyxsp xeysp exysp yxsep xysep ysxep syxep xsyep sxyep yesxp eysxp ysexp syexp esyxp seyxp xesyp exsyp xseyp sxeyp esxyp sexyp
Note: these 'words' (valid or invalid) are all the permutations of the word pyxes. These words are obtained by scrambling the letters in pyxes.