masks amsks msaks smaks asmks samks makss amkss mkass kmass akmss kamss mskas smkas mksas kmsas skmas ksmas askms sakms aksms kasms skams ksams massk amssk msask smask asmsk samsk massk amssk msask smask asmsk samsk mssak smsak mssak smsak ssmak ssmak assmk sasmk assmk sasmk ssamk ssamk makss amkss mkass kmass akmss kamss masks amsks msaks smaks asmks samks mksas kmsas mskas smkas ksmas skmas aksms kasms askms sakms ksams skams msksa smksa mkssa kmssa skmsa ksmsa msska smska msska smska ssmka ssmka mkssa kmssa msksa smksa ksmsa skmsa sksma kssma sskma sskma kssma sksma asksm saksm akssm kassm skasm ksasm asskm saskm asskm saskm ssakm ssakm akssm kassm asksm saksm ksasm skasm sksam kssam sskam sskam kssam sksam
Note: these 'words' (valid or invalid) are all the permutations of the word masks. These words are obtained by scrambling the letters in masks.