xrays rxays xarys axrys raxys arxys xryas rxyas xyras yxras ryxas yrxas xayrs axyrs xyars yxars ayxrs yaxrs rayxs aryxs ryaxs yraxs ayrxs yarxs xrasy rxasy xarsy axrsy raxsy arxsy xrsay rxsay xsray sxray rsxay srxay xasry axsry xsary sxary asxry saxry rasxy arsxy rsaxy sraxy asrxy sarxy xrysa rxysa xyrsa yxrsa ryxsa yrxsa xrsya rxsya xsrya sxrya rsxya srxya xysra yxsra xsyra sxyra ysxra syxra rysxa yrsxa rsyxa sryxa ysrxa syrxa xaysr axysr xyasr yxasr ayxsr yaxsr xasyr axsyr xsayr sxayr asxyr saxyr xysar yxsar xsyar sxyar ysxar syxar aysxr yasxr asyxr sayxr ysaxr syaxr raysx arysx ryasx yrasx ayrsx yarsx rasyx arsyx rsayx srayx asryx saryx rysax yrsax rsyax sryax ysrax syrax aysrx yasrx asyrx sayrx ysarx syarx
Note: these 'words' (valid or invalid) are all the permutations of the word xrays. These words are obtained by scrambling the letters in xrays.