Overpass API developpement

[Roland Olbricht <>]

Hi Arian,

> 
https://docs.google.com/document/d/18LGCXCYDHxNw5kBJpnH44aw-Knd9iwR2iNZTHijl1no/edit?usp=sharing

Thank you very much for the link to the document. That's an amazing way 
to tell the language semantics with an absorbing story.

Great work! I've not found any things to add. I'm already looking 
forward to the next part.

Cheers,

Roland