serry esrry srery rsery ersry resry serry esrry srery rsery ersry resry srrey rsrey srrey rsrey rrsey rrsey errsy rersy errsy rersy rresy rresy seryr esryr sreyr rseyr ersyr resyr seyrr esyrr syerr yserr eysrr yesrr sryer rsyer syrer ysrer ryser yrser erysr reysr eyrsr yersr ryesr yresr seryr esryr sreyr rseyr ersyr resyr seyrr esyrr syerr yserr eysrr yesrr sryer rsyer syrer ysrer ryser yrser erysr reysr eyrsr yersr ryesr yresr srrye rsrye srrye rsrye rrsye rrsye sryre rsyre syrre ysrre rysre yrsre sryre rsyre syrre ysrre rysre yrsre rryse rryse ryrse yrrse ryrse yrrse errys rerys errys rerys rreys rreys eryrs reyrs eyrrs yerrs ryers yrers eryrs reyrs eyrrs yerrs ryers yrers rryes rryes ryres yrres ryres yrres
Note: these 'words' (valid or invalid) are all the permutations of the word serry. These words are obtained by scrambling the letters in serry.