Sounds to me like it would be a sort of "expert" system. Consider:
The Wikipedia article Anne Frank could have tags at the bottom like
{WasBorn:1929} (IsA:Woman} {Wrote:The_Diary_Of_A_Young_Girl} {BornIn:Germany}
you get the idea. These facts or relationships tie together different articles in a more structured way. Presumably a user interface system could then be written that would take all the data and be able to do things like list off all the female german authors of the twentieth century.
Since facts aren't tied to one language, the "relationship database" could span all languages (since there is already a system for linking articles on the same subject to different languages). A relationship would have a certain ID internally with "translations" to different languages. So after typing in: {BornIn:Germany} in the english version, the computer would find the french equivelent of the relationship -BornIn- and the french equiv of Germany and update the french Anne_Frank article accordingly.
Anyway, I'm no specialist in the area, I do know that there are some internet projects of this sort trying to teach computers "common sense" {Lion IsA Animal} I don't know how much success they've had. It might be usefull, but I'm not so sure it fits into wikipedias mandate.
Just my three cents.
Matt
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