tsqua stqua tqsua qtsua sqtua qstua tsuqa stuqa tusqa utsqa sutqa ustqa tqusa qtusa tuqsa utqsa qutsa uqtsa squta qsuta suqta usqta qusta uqsta tsqau stqau tqsau qtsau sqtau qstau tsaqu staqu tasqu atsqu satqu astqu tqasu qtasu taqsu atqsu qatsu aqtsu sqatu qsatu saqtu asqtu qastu aqstu tsuaq stuaq tusaq utsaq sutaq ustaq tsauq stauq tasuq atsuq satuq astuq tuasq utasq tausq atusq uatsq autsq suatq usatq sautq asutq uastq austq tquas qtuas tuqas utqas qutas uqtas tqaus qtaus taqus atqus qatus aqtus tuaqs utaqs tauqs atuqs uatqs autqs quats uqats qauts aquts uaqts auqts squat qsuat suqat usqat qusat uqsat sqaut qsaut saqut asqut qasut aqsut suaqt usaqt sauqt asuqt uasqt ausqt quast uqast qaust aqust uaqst auqst
Note: these 'words' (valid or invalid) are all the permutations of the word tsqua. These words are obtained by scrambling the letters in tsqua.