Sounds like RDF to me. Not that I know anything about it, but it was a colleagues pet subject for a couple of weeks and from what I recall it was quite like this. (I admit that I didnt pay a lot of attention ;-)

The best I can do for you is point out this node to him and hopefully he has something constructive to say. Im pretty sure he was messing with it via perl so probably there is something useful there.

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demerphq