masus amsus msaus smaus asmus samus mauss amuss muass umass aumss uamss msuas smuas musas umsas sumas usmas asums saums ausms uasms suams usams massu amssu msasu smasu asmsu samsu massu amssu msasu smasu asmsu samsu mssau smsau mssau smsau ssmau ssmau assmu sasmu assmu sasmu ssamu ssamu mauss amuss muass umass aumss uamss masus amsus msaus smaus asmus samus musas umsas msuas smuas usmas sumas ausms uasms asums saums usams suams msusa smusa mussa umssa sumsa usmsa mssua smsua mssua smsua ssmua ssmua mussa umssa msusa smusa usmsa sumsa susma ussma ssuma ssuma ussma susma asusm sausm aussm uassm suasm usasm assum sasum assum sasum ssaum ssaum aussm uassm asusm sausm usasm suasm susam ussam ssuam ssuam ussam susam
Note: these 'words' (valid or invalid) are all the permutations of the word masus. These words are obtained by scrambling the letters in masus.