matts amtts mtats tmats atmts tamts matts amtts mtats tmats atmts tamts mttas tmtas mttas tmtas ttmas ttmas attms tatms attms tatms ttams ttams matst amtst mtast tmast atmst tamst mastt amstt msatt smatt asmtt samtt mtsat tmsat mstat smtat tsmat stmat atsmt tasmt astmt satmt tsamt stamt matst amtst mtast tmast atmst tamst mastt amstt msatt smatt asmtt samtt mtsat tmsat mstat smtat tsmat stmat atsmt tasmt astmt satmt tsamt stamt mttsa tmtsa mttsa tmtsa ttmsa ttmsa mtsta tmsta mstta smtta tsmta stmta mtsta tmsta mstta smtta tsmta stmta ttsma ttsma tstma sttma tstma sttma attsm tatsm attsm tatsm ttasm ttasm atstm tastm asttm sattm tsatm statm atstm tastm asttm sattm tsatm statm ttsam ttsam tstam sttam tstam sttam
Note: these 'words' (valid or invalid) are all the permutations of the word matts. These words are obtained by scrambling the letters in matts.