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: "2006 GP2 Series season was won by a man that won his first World Championship title in what year?" whose answer is 2008.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Lewis Hamilton first World Championship title year
Useful Output:

Doc 1: Hamilton has won seven times in Canada, where he won his first ever race in 2007. He has a great record in China as well, with six wins and a
Doc 2: 2) 2014: First title with Mercedes. After a fallow spell with McLaren and an unmemorable first year with the Silver Arrows, Hamilton emerged
Doc 3: The Englishman won his first world title with McLaren in 2008 with further successes in 2014, 2015, 2017, 2018 and 2019. Challenger
Doc 4: Lewis Hamilton Wins First World Title | 2008 Brazilian Grand Prix | Race Highlights · Comments4.3K.
Doc 5: Hamilton came within a single point of becoming the first debutant to win a world championship. Lewis Hamilton Wins First World Title | 2008