6. The method of claim 1 , wherein calculating a charge for processing the natural language query comprises: determining an additional charge for use of a third party service, the third party service used to identify data or take action responsive to the natural language query; and adding the additional charge to the charge for processing the natural language query.
6. The method of claim 1 , wherein calculating a charge for processing the natural language query comprises: determining an additional charge for use of a third party service, the third party service used to identify data or take action responsive to the natural language query; and adding the additional charge to the charge for processing the natural language query. 7. The method of claim 6 , wherein determining an additional charge for use of a third party service comprises determining an additional charge for use of a third party service provided through a third party programming interface.