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: "How many Grand Slam titles did the winner of the 1980 Avon Championships of Houston win ?" whose answer is 39.
Each document should contain about 30 words, and these documents should contain useful information.

Query: how many Grand Slam titles did Tracy Austin win
Useful Output:

Doc 1:  win 20 Grand Slam titles. Though Evert won the vast majority of times she and Shriver played, Shriver did earn three victories.
Doc 2: Tracy Austin ; 3-TIME MAJOR CHAMPION, 1-TIME FINALIST ; 35. CAREER TITLES ; 1980. WTA WORLD TOUR CHAMPION.
Doc 3: 50 Fact: Austin's 1981 finals victory over Navratilova was the first Grand Slam singles final to finish in a final-set tiebreak, and one of just
Doc 4: International Tennis Hall of Fame's Tracy Austin reflects on the sport's most iconic moments in history.
Doc 5: Tennis Legend Tracy Austin Says 'Numerous' Americans Can Win a Grand Slam  He has won 16 career titles and reached a career-high of No.