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: winner of 1980 Avon Championships of Houston
Useful Output:

Doc 1: Winner, Finalist, Score, Semifinalists. 26-May-1980, Roland Garros, Clay, Chris  Avon Championships, Carpet, Tracy Austin [USA], 4/11, Martina Navratilova [USA]
Doc 2: The team was owned by long-time tennis promoter George Liddy, who also promoted the $100,000 Avon Tennis Championships of Houston that were staged at the
Doc 3: Avon Championships of Houston. 1983 - 1984. Virginia Slims of Houston  Gallery Furniture Championships, Houston - Current Champions  1980. Billie Jean
Doc 4: 1979: Avon, replacing Virginia Slims as winter circuit sponsor, offers a record $100,000 to the winner of the Avon Circuit Championship. 1980: By now more
Doc 5: Avon Championships of Houston · Houston, United States Avon Championships Circuit Carpet (i) – $150,000 – 33S/15D, United States Billie Jean King 6–1, 6–3