[Alex3917]

"The problem is that the relations turn it into the Semantic Web"

Not really. Assuming there are only four or five simple relationships like "Knowing fact X is necessary to understand fact Y", then the whole system isn't much more complicated than trackbacks for blog posts.

[david927]

If it was that simple, it would already have been solved. The problem is that relations are for any data point and they can be one-to-one, one-to-many, or many-to-many; and mixes metadata with data seamlessly. It's a hard problem, make no mistake, but completely solvable. I have an approach I'm working on that I'll email you, if you're interested.

[Alex3917]

Sure, send me an email.