quist uqist qiust iqust uiqst iuqst qusit uqsit qsuit squit usqit suqit qisut iqsut qsiut sqiut isqut siqut uisqt iusqt usiqt suiqt isuqt siuqt quits uqits qiuts iquts uiqts iuqts qutis uqtis qtuis tquis utqis tuqis qitus iqtus qtius tqius itqus tiqus uitqs iutqs utiqs tuiqs ituqs tiuqs qusti uqsti qsuti squti usqti suqti qutsi uqtsi qtusi tqusi utqsi tuqsi qstui sqtui qtsui tqsui stqui tsqui ustqi sutqi utsqi tusqi stuqi tsuqi qistu iqstu qsitu sqitu isqtu siqtu qitsu iqtsu qtisu tqisu itqsu tiqsu qstiu sqtiu qtsiu tqsiu stqiu tsqiu istqu sitqu itsqu tisqu stiqu tsiqu uistq iustq usitq suitq isutq siutq uitsq iutsq utisq tuisq itusq tiusq ustiq sutiq utsiq tusiq stuiq tsuiq istuq situq itsuq tisuq stiuq tsiuq
Note: these 'words' (valid or invalid) are all the permutations of the word quist. These words are obtained by scrambling the letters in quist.