sexts esxts sxets xsets exsts xests setxs estxs stexs tsexs etsxs tesxs sxtes xstes stxes tsxes xtses txses extss xetss etxss texss xtess txess sexst esxst sxest xsest exsst xesst sesxt essxt ssext ssext essxt sesxt sxset xsset ssxet ssxet xsset sxset exsst xesst esxst sexst xsest sxest setsx estsx stesx tsesx etssx tessx sestx esstx ssetx ssetx esstx sestx stsex tssex sstex sstex tssex stsex etssx tessx estsx setsx tsesx stesx sxtse xstse stxse tsxse xtsse txsse sxste xsste ssxte ssxte xsste sxste stsxe tssxe sstxe sstxe tssxe stsxe xtsse txsse xstse sxtse tsxse stxse extss xetss etxss texss xtess txess exsts xests esxts sexts xsets sxets etsxs tesxs estxs setxs tsexs stexs xtses txses xstes sxtes tsxes stxes
Note: these 'words' (valid or invalid) are all the permutations of the word sexts. These words are obtained by scrambling the letters in sexts.