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: "Hudson's was the second-largest department store by square footage to the company who has a flagship store where?" whose answer is Manhattan, New York City.
Each document should contain about 30 words, and these documents should contain useful information.

Query: largest department store by square footage
Useful Output:

Doc 1: The average size of a grocery store is about 40,000 square feet. This is the size that most shoppers experience in traditional grocery stores.
Doc 2: Located in Mandaluyong, Metro Manila, Philippines, SM Megamall has a vast floor area of 474,000 square meters (5.1 million sq ft), earning its
Doc 3: Shinsegae in Busan, South Korea, is officially the world's largest department store, spanning two buildings and 5,487,595 square feet. It's
Doc 4: Kohl's is the largest department store chain with 1,162 stores  Department store chains account for about 25% of the total mall square footage
Doc 5: The Home Depot has an average store size of 104,100 square feet over 2,286 locations.  With an average retail store space of 145,300 square