quass uqass qauss aquss uaqss auqss qusas uqsas qsuas squas usqas suqas qasus aqsus qsaus sqaus asqus saqus uasqs ausqs usaqs suaqs asuqs sauqs quass uqass qauss aquss uaqss auqss qusas uqsas qsuas squas usqas suqas qasus aqsus qsaus sqaus asqus saqus uasqs ausqs usaqs suaqs asuqs sauqs qussa uqssa qsusa squsa usqsa suqsa qussa uqssa qsusa squsa usqsa suqsa qssua sqsua qssua sqsua ssqua ssqua ussqa susqa ussqa susqa ssuqa ssuqa qassu aqssu qsasu sqasu asqsu saqsu qassu aqssu qsasu sqasu asqsu saqsu qssau sqsau qssau sqsau ssqau ssqau assqu sasqu assqu sasqu ssaqu ssaqu uassq aussq usasq suasq asusq sausq uassq aussq usasq suasq asusq sausq ussaq susaq ussaq susaq ssuaq ssuaq assuq sasuq assuq sasuq ssauq ssauq
Note: these 'words' (valid or invalid) are all the permutations of the word quass. These words are obtained by scrambling the letters in quass.