user: Question: Group position of 1st, and a Result F–A of 2–0 has what average attendance?
Columns: ['Date', 'Opponents', 'Result F–A', 'Attendance', 'Group position']
Types: ['text', 'text', 'text', 'real', 'text']
Sample row: ['16 September 2003', 'Panathinaikos', '5–0', 66520.0, '1st']
SQL:

assistant: SELECT AVG("Attendance") FROM "Table" WHERE "Group position" = '1st' AND "Result F–A" = '2–0';