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: "Airport is a 1970 American disaster-drama film starring Burt Lancaster and Dean Martin, Martin was an American singer, actor, comedian, and film producer, and was nicknamed what?" whose answer is King of Cool.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Dean Martin nickname
Useful Output:

Doc 1: Martin had already secured a legendary reputation for enjoying a drink, including earning the nickname "DRUNKY", according to the 1992 book Dino.
Doc 2:  nickname "The King of Cool." Martin was also a member of the famous Rat Pack, a group of entertainers that included Frank Sinatra and Sammy
Doc 3: Frank Sinatra called his pal Dean Martin “Dino,” because that is Martin's real first name. Dean Martin was born June 7, 1917 with the birth name Dino Paul
Doc 4: TCM's new Dean Martin documentary, King of Cool, argues that Dino earned that unofficial title by, among other things, exuding the sense that nothing bothered
Doc 5: Actor, singer Dean Martin starred in several films with Jerry Lewis and belonged to the "Rat Pack," which included Frank Sinatra and Sammy Davis, Jr.