user: Question: WhAt is the lowest AttendAnce when Middlesbrough plAyed At Venue A?
Columns: ['Date', 'Opponent', 'Venue', 'Result', 'Attendance']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['15 August 2004', 'Manchester United', 'H', '1-0', 41813.0]
SQL:

assistant: SELECT MIN("Attendance") FROM "Table" WHERE "Opponent" = 'Middlesbrough' AND "Venue" = 'A';