russe ursse rsuse sruse usrse surse russe ursse rsuse sruse usrse surse rssue srsue rssue srsue ssrue ssrue ussre susre ussre susre ssure ssure ruses urses rsues srues usres sures ruess uress reuss eruss uerss eurss rseus sreus resus ersus serus esrus users suers uesrs eusrs seurs esurs ruses urses rsues srues usres sures ruess uress reuss eruss uerss eurss rseus sreus resus ersus serus esrus users suers uesrs eusrs seurs esurs rsseu srseu rsseu srseu ssreu ssreu rsesu sresu ressu erssu sersu esrsu rsesu sresu ressu erssu sersu esrsu sseru sseru sesru essru sesru essru usser suser usser suser ssuer ssuer usesr suesr uessr eussr seusr esusr usesr suesr uessr eussr seusr esusr sseur sseur sesur essur sesur essur
Note: these 'words' (valid or invalid) are all the permutations of the word russe. These words are obtained by scrambling the letters in russe.