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 Eighth Happiness stars this actor, regarded as one of four what?" whose answer is Heavenly Kings.
Each document should contain about 30 words, and these documents should contain useful information.

Query: The Eighth Happiness actor four
Useful Output:

Doc 1: Cast & Crew ; Johnnie ToDirector ; Raymond Wong Bak-mingCast, Screenplay ; Chow Yun-fatCast ; Carol 'Do Do' ChengCast ; Philip ChengScreenplay.
Doc 2: Hong Kong cinema icons Chow Yun Fat and Tony Leung reunited for a rare public appearance at director Johnnie To's 70th birthday celebration.
Doc 3: Cast 33 · Chow Yun-Fat. Fang Chien Lang / Fong Kim Long · Jacky Cheung Hok-yau · Raymond Wong Pak-Ming · Cherie Chung Cho-Hung · Carol Cheng · Petrina Fung Bo-Bo.
Doc 4: Chow Yun-Fat. Fang Chien Lang / Fong Kim Long · Jacky Cheung · Raymond Wong Pak-Ming · Cherie Chung Cho-Hung · Carol Cheng · Petrina Fung Bo-Bo · Fennie Yuen Kit-Ying.
Doc 5: Chow Yun-Fat · Raymond Wong · Carol Cheng · Petrina Fung · Jacky Cheung · Fennie Yuen · Cherie Chung · Lawrence Cheng.