user: Question: What's the average against of leopold with more than 11 wins?
Columns: ['Geelong FL', 'Wins', 'Byes', 'Losses', 'Draws', 'Against']
Types: ['text', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Bell Park', 15.0, 0.0, 3.0, 0.0, 1178.0]
SQL:

assistant: SELECT AVG("Against") FROM "Table" WHERE "Geelong FL" = 'leopold' AND "Wins" > 11.0;