You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "Who was first to win a Grand Slam doubles championship, Heather Watson or Édouard Roger-Vasselin?" whose answer is Édouard Roger-Vasselin.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Heather Watson Grand Slam doubles championships
Useful Output:

Doc 1: Heather Watson is through to the fourth round of Wimbledon for the first time in her career after a 7-6 (8-6) 6-2 victory over Kaja Juvan.
Doc 2: Jamie Murray and Heather Watson to thrill Wimbledon mixed-doubles final  Fans at Wimbledon love a bit of mixed doubles. It is the form of
Doc 3: Heather Watson became a five-time WTA doubles title-winner this weekend – joining forces with Lexus Surbiton Trophy champion Yanina Wickmayer to lift the
Doc 4: The Championships 2016 will run from 27 June-10 July  Heather Watson mixed doubles semi-final press conference. 9.2K views · 8 years ago
Doc 5: Watson won the mixed-doubles title at the 2016 Wimbledon Championships - the first British woman to win a Grand Slam title in 25 years. But