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: "Each year the world's largest parade is kicked off with a song by what artist?" whose answer is Elvis Presley.
Each document should contain about 30 words, and these documents should contain useful information.

Query: world's largest parade
Useful Output:

Doc 1: 1. Macy's Thanksgiving Day Parade, New York City, New York · 2. Rose Parade, Pasadena, California · 3. Mardi Gras Parade, New Orleans, Louisiana.
Doc 2: Biggest Parade in the World: Carnival, Rio  Carnival in Rio is an incredible experience. It is considered the largest carnival in the world.
Doc 3: The Biggest Parades Across the World · Macy's Thanksgiving Day Parade (America) · Krampuslauf (Austria) · Esala Perahera (Sri Lanka) · Carnaval
Doc 4: While the Macy's Parade isn't the oldest Thanksgiving parade, it is the world's largest parade. The Macy's Parade dates back to 1924 when a
Doc 5: The Guinness World Record for largest parade of hand operated tricycles comprised 300 units and was achieved by Ministry of Social Justice and Empowerment,