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: "Union Square is located at the foot of which historic neighborhood in Washington, D.C.?" whose answer is Capitol Hill.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Union Square location in Washington, D.C.
Useful Output:

Doc 1: Union Square is an 11-acre public plaza at the foot of Capitol Hill in Washington, D.C., United States. It encompasses the Ulysses S. Grant Memorial and the
Doc 2: Union Square is an 11-acre public plaza at the foot of Capitol Hill in Washington, D.C., United States. It encompasses the Ulysses S. Grant Memorial and the 6-
Doc 3: Union Square is an 11-acre public plaza at the foot of Capitol Hill in Washington, D.C., United States. It encompasses the Ulysses S. Grant Memorial (1924) and
Doc 4: The nearest metro station to Union Square in Washington is Union Station. It's a 7 min walk away. What's the nearest train station to Union
Doc 5: Union Square est une place publique de 11 acres située au pied du quartier résidentiel Capitol Hill à Washington, DC. Elle englobe le Mémorial Ulysses S. Grant