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: "The closing ceremony of the 2015 Pan American Games took place on Sunday which date, beginning at 8:00 p.m. EDT at Rogers Centre, a multi-purpose stadium in Downtown Toronto, Ontario, Canada, situated just southwest of the CN Tower near the northern shore of Lake Ontario?" whose answer is July 26, 2015.
Each document should contain about 30 words, and these documents should contain useful information.

Query: 2015 Pan American Games closing ceremony date
Useful Output:

Doc 1: The Pan American Closing Ceremony's theme, unity through diversity, reflected the enthusiasm of the Games, as well as the unique cultures of the Americas.
Doc 2: The countdown for the Top 75 athletes who have competed at the Pan American Games concludes with the stars from 2018 to 2022.
Doc 3: Five years ago, more than 6000 athletes from 41 countries put on an outstanding show of speed, strength, and skill at the Toronto 2015 Pan
Doc 4: Team Canada Wins 3 Medals on Final Day of Toronto 2015 Pan Am Games and Marches into the Closing Ceremony. Jul 27, 2015. On day 16, Team
Doc 5: The countdown for the Top 75 athletes who have competed at the Pan American Games continues with the stars from 2008 to 2017.