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: "How tall is this monument in St. Louis built after the Apotheosis of St. Louis, which became an international symbol for the city?" whose answer is 630 ft.
Each document should contain about 30 words, and these documents should contain useful information.

Query: height of the Gateway Arch St. Louis
Useful Output:

Doc 1: The Gateway Arch is one of the newest monuments in the National Park system, and at 630 feet, it is certainly the tallest!
Doc 2: How Tall Is The St. Louis Gateway Arch? Discover the remarkable story behind one of the most iconic structures in the United States.
Doc 3: The Gateway Arch in St.Louis stands at a height of 630 feet (192 meters) above ground level and the width of the Arch is the same as the height.
Doc 4: Standing 630 feet tall with foundations sinking 60 feet into the ground, the St. Louis Gateway Arch is the tallest—and arguably one of the most
Doc 5: The Gateway Arch, also known as the Gateway to the West, is a 630-foot-tall (192 m) stainless steel monument located in St. Louis along the Mississippi River.