user: Question: What is the mean drawn when the difference is 0 and the against stat is more than 31?
Columns: ['Position', 'Team', 'Points', 'Played', 'Drawn', 'Lost', 'Against', 'Difference']
Types: ['real', 'text', 'real', 'real', 'real', 'real', 'real', 'text']
Sample row: [1.0, 'Palmeiras', 27.0, 16.0, 3.0, 1.0, 20.0, '29']
SQL:

assistant: SELECT AVG("Drawn") FROM "Table" WHERE "Difference" = '0' AND "Against" > 31.0;