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: "While Packaging Corporation of America is headquartered in Lake Forest, IL, where is Duke Energy headquartered?" whose answer is Charlotte, North Carolina.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Duke Energy headquarters
Useful Output:

Doc 1: Duke Energy, a Fortune 150 company headquartered in Charlotte, N.C., is one of America's largest energy holding companies.
Doc 2: Where is Duke Energy Corporation located? Duke Energy Corporation is located at 525 S Tryon St Charlotte, NC, 28202-1839 United States. What
Doc 3: Demolition begins next month at the old Duke Energy headquarters on South Church Street, kicking off its transformation into luxury
Doc 4: Duke Energy's headquarters is situated at 525 S Tryon St, Charlotte, United States. This location serves as the main office for the company,
Doc 5: Duke Energy Plaza, the 40-floor office tower currently under construction in Uptown Charlotte, will become the company's new corporate headquarters.