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 was the original wizard of oz made?" whose answer is 1900 children's book.
Each document should contain about 30 words, and these documents should contain useful information.

Query: when was the original wizard of oz made
Useful Output:

Doc 1: In honor of the film's 80th anniversary, a look back at a few anecdotes that have not aged as well as the 1939 classic.
Doc 2: “Bert Lahr, who had last seen 'Oz' at its 1939 premiere, introduced the program, assisted by Judy's daughter, Liza Minnelli,” Stillman said. “
Doc 3: The picture was produced in 1938-'39, with the Great Depression slowly grinding to a close and the specter of global war looming on the horizon.
Doc 4: “The Wizard of Oz” officially opened on Broadway at the Majestic Theatre on January 21, 1903 and became the longest running show of the decade,
Doc 5: But on August 25, the beloved film The Wizard of Oz marks its 80th anniversary. One of the earliest major Technicolor pictures, the film was a