smirs msirs simrs ismrs misrs imsrs smris msris srmis rsmis mrsis rmsis sirms isrms srims rsims irsms risms mirss imrss mriss rmiss irmss rimss smisr msisr simsr ismsr missr imssr smsir mssir ssmir ssmir mssir smsir sismr issmr ssimr ssimr issmr sismr missr imssr msisr smisr ismsr simsr smrsi msrsi srmsi rsmsi mrssi rmssi smsri mssri ssmri ssmri mssri smsri srsmi rssmi ssrmi ssrmi rssmi srsmi mrssi rmssi msrsi smrsi rsmsi srmsi sirsm isrsm srism rsism irssm rissm sisrm issrm ssirm ssirm issrm sisrm srsim rssim ssrim ssrim rssim srsim irssm rissm isrsm sirsm rsism srism mirss imrss mriss rmiss irmss rimss misrs imsrs msirs smirs ismrs simrs mrsis rmsis msris smris rsmis srmis irsms risms isrms sirms rsims srims
Note: these 'words' (valid or invalid) are all the permutations of the word smirs. These words are obtained by scrambling the letters in smirs.