marts amrts mrats rmats armts ramts matrs amtrs mtars tmars atmrs tamrs mrtas rmtas mtras tmras rtmas trmas artms ratms atrms tarms rtams trams marst amrst mrast rmast armst ramst masrt amsrt msart smart asmrt samrt mrsat rmsat msrat smrat rsmat srmat arsmt rasmt asrmt sarmt rsamt sramt matsr amtsr mtasr tmasr atmsr tamsr mastr amstr msatr smatr asmtr samtr mtsar tmsar mstar smtar tsmar stmar atsmr tasmr astmr satmr tsamr stamr mrtsa rmtsa mtrsa tmrsa rtmsa trmsa mrsta rmsta msrta smrta rsmta srmta mtsra tmsra mstra smtra tsmra stmra rtsma trsma rstma srtma tsrma strma artsm ratsm atrsm tarsm rtasm trasm arstm rastm asrtm sartm rsatm sratm atsrm tasrm astrm satrm tsarm starm rtsam trsam rstam srtam tsram stram
Note: these 'words' (valid or invalid) are all the permutations of the word marts. These words are obtained by scrambling the letters in marts.