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 does the fifa world cup 2018 end?" whose answer is 15 July 2018.
Each document should contain about 30 words, and these documents should contain useful information.

Query: end date of fifa world cup 2018
Useful Output:

Doc 1: The 2018 FIFA World Cup is being held in cities throughout Russia from June 14 through July 15. Teams are competing at 12 stadiums in 11 different cities.
Doc 2: Russia will host the world's biggest soccer tournament from June 14 to July 15, in 11 cities in the European part of the country.
Doc 3: Last-16 fixtures in full ; Saturday, June 30, 7pm, Uruguay 2-1 Portugal, Sochi ; Sunday, July 1, 3pm, Spain 1-1 Russia (aet, 3-4 on pens)
Doc 4: Croatia made it to their first ever final, thanks to its golden generation, led by playmaker Luka Modric (winner of the tournament's Golden Ball award).
Doc 5: After a total of 64 matches played in 12 venues across 11 different Russian cities, the champions will be crowned in the same arena on 15 July.