sexto esxto sxeto xseto exsto xesto setxo estxo stexo tsexo etsxo tesxo sxteo xsteo stxeo tsxeo xtseo txseo extso xetso etxso texso xteso txeso sexot esxot sxeot xseot exsot xesot seoxt esoxt soext osext eosxt oesxt sxoet xsoet soxet osxet xoset oxset exost xeost eoxst oexst xoest oxest setox estox steox tseox etsox tesox seotx esotx soetx osetx eostx oestx stoex tsoex sotex ostex tosex otsex etosx teosx eotsx oetsx toesx otesx sxtoe xstoe stxoe tsxoe xtsoe txsoe sxote xsote soxte osxte xoste oxste stoxe tsoxe sotxe ostxe tosxe otsxe xtose txose xotse oxtse toxse otxse extos xetos etxos texos xteos txeos exots xeots eoxts oexts xoets oxets etoxs teoxs eotxs oetxs toexs otexs xtoes txoes xotes oxtes toxes otxes
Note: these 'words' (valid or invalid) are all the permutations of the word sexto. These words are obtained by scrambling the letters in sexto.