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: "when did the cubs win the world series last?" whose answer is 2016.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when did the chicago cubs win the world series
Useful Output:

Doc 1: The Chicago Cubs ended the curse by winning their first World Series championship since 1908. World Series 2016: Chicago Cubs beat Cleveland Indians in Game 7.
Doc 2: The 2016 World Series was the championship series ; The Cubs defeated the Indians 4–3 to capture their first World Series championship since 1908 ; The Cubs,
Doc 3: In the early hours of November 3, 2016, the Chicago Cubs win their first World Series championship since 1908, beating the Cleveland Indians
Doc 4: It's true. The Cubs won their first World Series title since 1908. In Game 7, the Cleveland Indians rallied to force extra innings,
Doc 5: MLB World Series Winners ; 2017, Houston Astros · Los Angeles Dodgers ; 2016, Chicago Cubs · Cleveland Indians ; 2015, Kansas City Royals · New York Mets ; 2014