madas amdas mdaas dmaas admas damas maads amads maads amads aamds aamds mdaas dmaas madas amdas damas admas adams daams aadms aadms daams adams madsa amdsa mdasa dmasa admsa damsa masda amsda msada smada asmda samda mdsaa dmsaa msdaa smdaa dsmaa sdmaa adsma dasma asdma sadma dsama sdama maasd amasd maasd amasd aamsd aamsd masad amsad msaad smaad asmad samad masad amsad msaad smaad asmad samad aasmd aasmd asamd saamd asamd saamd mdasa dmasa madsa amdsa damsa admsa mdsaa dmsaa msdaa smdaa dsmaa sdmaa masda amsda msada smada asmda samda dasma adsma dsama sdama asdma sadma adasm daasm aadsm aadsm daasm adasm adsam dasam asdam sadam dsaam sdaam aasdm aasdm asadm saadm asadm saadm dasam adsam dsaam sdaam asdam sadam
Note: these 'words' (valid or invalid) are all the permutations of the word madas. These words are obtained by scrambling the letters in madas.