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 is ranked first in men's tennis?" whose answer is Roger Federer.
Each document should contain about 30 words, and these documents should contain useful information.

Query: latest men's tennis world ranking
Useful Output:

Doc 1: Top 50 Men's Tennis Singles World Ranking 2025 Table: ; 1, Jannik Sinner, Italy ; 2, Alexander Zverev, Germany ; 3, Carlos Alcaraz, Spain ; 4
Doc 2: Men's singles world rankings - complete list ; 1. Novak Djokovic (Serbia), 11,245 ; 2. Carlos Alcaraz (Spain), 8,855 ; 3. Daniil Medvedev, 7,600.
Doc 3: In the latest rankings update, Alexander Zverev has returned to second spot, pushing, Carlos Alcaraz back to third. Holger Rune has also surged
Doc 4: As of January 2025, Jannik Sinner topped the ATP ranking of male tennis players, ahead of Alexander Zverev and Carlos Alcaraz in second and third place,
Doc 5: 1 · LIN Shidong. 8975 ; 2 · WANG Chuqin. 6925 ; 3 · Hugo CALDERANO. 4575 ; 4 · Tomokazu HARIMOTO. 4550 ; 5 · LIANG Jingkun. 3900.