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 front man for the band The Ballas Hough Band was born in what year?" whose answer is 1986.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Derek Hough birth year
Useful Output:

Doc 1: Happy birthday to amazing dancer Derek Hough！Like you！ 5 yrs. 1.
Doc 2: Hayley Erbert and Julianne Hough celebrated Derek Hough's 39th birthday on May 17 with loving tribute posts shared to Instagram.
Doc 3: Horoscope and astrology data of Derek Hough born on 17 May 1985 Salt Lake City, Utah, with biography.
Doc 4: Hough was born on May 17, 1985, in Salt Lake City, Utah. Hough grew up as a member of the Church of Jesus Christ of Latter Day Saints along with
Doc 5: Happy 30th birthday, my love. · ME, a 6x Dancing with the Stars Champ, & @jonbellion… · @derekhough · When Hayley leaves me home alone.