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 the last australian to win a grand slam?" whose answer is 2011.
Each document should contain about 30 words, and these documents should contain useful information.

Query: last australian to win a grand slam
Useful Output:

Doc 1: 2001: US Open title, Masters Cup trophy, No. 1​​ This win made Hewitt the most recent male player to win a Grand Slam singles and doubles title during his career
Doc 2: This is an all-time list of winners of the four Grand Slam men's and women's singles tennis tournaments, organized by country.
Doc 3: Ashleigh Barty has become the 17th Australian to win a women's grand slam title after victory in the French Open final.
Doc 4: Find out every men's tennis Grand Slam winner throughout history, here at ESPN.com.
Doc 5: It's actually Mark Edmondson, an Australian player who won the 1976 Australian Open. He won while entering the tournament unseeded and ranked