user: Question: Which opponent has an attendance of 40,560?
Columns: ['Date', 'Opponent', 'Score', 'Loss', 'Attendance', 'Record']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['June 1', '@ Twins', '5 - 3 (10)', 'Willis (1-2)', '20,134', '32-19']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Attendance" = '40,560';