xarth axrth xrath rxath arxth raxth xatrh axtrh xtarh txarh atxrh taxrh xrtah rxtah xtrah txrah rtxah trxah artxh ratxh atrxh tarxh rtaxh traxh xarht axrht xraht rxaht arxht raxht xahrt axhrt xhart hxart ahxrt haxrt xrhat rxhat xhrat hxrat rhxat hrxat arhxt rahxt ahrxt harxt rhaxt hraxt xathr axthr xtahr txahr atxhr taxhr xahtr axhtr xhatr hxatr ahxtr haxtr xthar txhar xhtar hxtar thxar htxar athxr tahxr ahtxr hatxr thaxr htaxr xrtha rxtha xtrha txrha rtxha trxha xrhta rxhta xhrta hxrta rhxta hrxta xthra txhra xhtra hxtra thxra htxra rthxa trhxa rhtxa hrtxa thrxa htrxa arthx rathx atrhx tarhx rtahx trahx arhtx rahtx ahrtx hartx rhatx hratx athrx tahrx ahtrx hatrx tharx htarx rthax trhax rhtax hrtax thrax htrax
Note: these 'words' (valid or invalid) are all the permutations of the word xarth. These words are obtained by scrambling the letters in xarth.