1. A method, comprising: receiving a search request from a user; presenting a list of a plurality of structured queries based on the search request to a human assistant; receiving a selection of one of the plurality of structured queries from the human assistant; obtaining an answer from a source using the selected structured query, wherein the answer is responsive to the search request; and providing the answer to the user.
3. The method of claim 1 , further comprising: procuring a selection of a keyword of the search request from the human assistant; obtaining a search result based on a ranking of the search result for the keyword.