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: "a mountain on which four us presidents are carved?" whose answer is Mount Rushmore.
Each document should contain about 30 words, and these documents should contain useful information.

Query: presidents carved into mountain
Useful Output:

Doc 1: George Washington, First President of the United States · Thomas Jefferson, Third President of the United States · Theodore Roosevelt, 26th
Doc 2: Majestic figures of George Washington, Thomas Jefferson, Theodore Roosevelt and Abraham Lincoln, surrounded by the beauty of the Black Hills of South Dakota.
Doc 3: Mount Rushmore in South Dakota's Black Hills National Forest, features four gigantic sculptures depicting the faces of U.S. Presidents
Doc 4: The 20-metre-tall carvings pay tribute to four presidents – George Washington, Thomas Jefferson, Theodore Roosevelt, and Abraham Lincoln.
Doc 5: This colossal sculpture showcases the iconic faces of four former US presidents intricately carved into a mountain in South Dakota's Black Hills.