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: "how many asian countries are participating in fifa world cup 2018?" whose answer is five.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Asian countries in the 2018 FIFA World Cup
Useful Output:

Doc 1: Follow all the action from the Asian World Cup Qualifiers: Facebook: http://www.facebook.com/theafcdotcom/ Twitter:
Doc 2: Japan will play in its sixth consecutive World Cup Finals when they take on Poland, Colombia and Senegal in Group H. The Asian powerhouse
Doc 3: Kuala Lumpur: The Road to Russia reached a gripping climax on Tuesday as Korea Republic and Saudi Arabia joined the Islamic Republic of Iran and
Doc 4: Team, Matches, Won, Draws, Lost, G+, G-, G/, Pts. Iran, 10, 6, 4, 0, 10, 2, 8, 22. South Korea, 10, 4, 3, 3, 11, 10, 1, 15. Syria, 10, 3, 4, 3, 9, 8, 1, 13.
Doc 5: Group A ; 1. IR IranIRN ; 2. Korea RepublicKOR ; 3. SyriaSYR ; 4. UzbekistanUZB ; 5. China PRCHN.