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: "What year did former professional footballer who the Spanish Tax Decree was nicknamed for retire?" whose answer is 2013.
Each document should contain about 30 words, and these documents should contain useful information.

Query: David Beckham retirement year
Useful Output:

Doc 1: After playing professionally for 21 years, David Beckham officially retired from football in 2013. He announced the news on 16th May 2013.
Doc 2: After 20 years, his playing career ends with French club Paris Saint-Germain (PSG).
Doc 3: David Beckham is to retire from football after two decades at the top of the game. Beckham was initially thought to be contemplating a further year's contract
Doc 4: Beckham retired from his professional playing days in 2013. Today, he is a part-owner of Inter Miami CF, among other business interests. He and
Doc 5: Former England captain David Beckham is to retire from football at the end of the season, at the age of 38.