Ok, very cool. I might misunderstand the use case then.
Do you do any sort of history-based analysis? E.g. solving "I just imported this, which I tagged with a,b,c from locations x,y,z, now I want to import this, that has d,e,f also from positions x,y,z" - I guess Wikipedias info boxes would be a typical example of that kind of semi-structured data. Or does that require setting up an import channel yourself?