Is there something along these lines but in open source? I have been dreaming of having natural language querying combined with Freebase or such, and with computational in addition to pure data endpoints, to build a kind of open source Wolfram Alpha.
The University of Sheffield (Delver's home town!) maintains gate.ac.uk which offers a full-stack semantic text extraction engine. That's unlikely to get you to the stage we're aiming at though.
Yea my question was just a tangent, thanks for the info and all the best for your project! Is delver based on gate then or is it a completely separate project? Love to see this kind of application of academic research.