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: "What is the square footage of this mansion in Duluth, Minnesota, operated by the University of Minnestoa Duluth as a historic house museum, indelibly linked with the Congdon name?" whose answer is 27,000.
Each document should contain about 30 words, and these documents should contain useful information.

Query: Duluth, Minnesota mansion linked with Congdon name square footage
Useful Output:

Doc 1: They also purchased/own Robert and Dorothy Congdon's house next door, known as Chanticlair, which was built on land gifted by Clara Congdon. For
Doc 2: Today, up to 30 percent of people who tour the historic 27,000-square-foot mansion and grounds come because of the murders, he says. Because of
Doc 3: The large concrete building, which once housed Chester Congdon's 54-foot yacht, was battered by a 2017 storm that filled the boathouse channel
Doc 4: Background: The 20,000-square-foot mansion on the North Shore of Lake Superior was completed in 1908, and now operates as a museum run by the
Doc 5: Stories handed down by generations of the Congdon family, who built the landmark mansion-turned-museum on Duluth's east side, claimed it was