It'd be awesome to see a dump of the data so that we can examine it on our own - many people may think of ways to use it that you haven't, or draw different conclusions from it. :D
(note: I haven't actually seen any passwords, but that doesn't mean there aren't any)
I would have to guess that the first "word" with the command only is clean? Have you seen any evidence to the contrary? That data set alone would tell an interesting story.