user: Question: What is the average attendance when Brewers are the opponent with a score of 6–3?
Columns: ['Date', 'Opponent', 'Score', 'Loss', 'Attendance', 'Record']
Types: ['text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['June 1', '@ Padres', '7–1', 'Germano (1–1)', 28313.0, '20–31']
SQL:

assistant: SELECT AVG("Attendance") FROM "Table" WHERE "Opponent" = 'Brewers' AND "Score" = '6–3';