user: Question: Who was the winner when the total attendance was 16597?
Columns: ['Date', 'Time', 'ACC Team', 'Big Ten Team', 'Location', 'Television', 'Attendance', 'Winner', 'Challenge Leader']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Tue., Nov. 29', '7:00pm', 'Virginia', '#15 Michigan', 'John Paul Jones Arena • Charlottesville, VA', 'ESPN2', 10564.0, 'Virginia (70-58)', 'ACC (1-0)']
SQL:

assistant: SELECT "Winner" FROM "Table" WHERE "Attendance" = 16597.0;