user: Question: Which Against is the highest one that has a Difference of 12?
Columns: ['Position', 'Team', 'Points', 'Played', 'Drawn', 'Lost', 'Against', 'Difference']
Types: ['real', 'text', 'real', 'real', 'real', 'real', 'real', 'text']
Sample row: [1.0, 'Fluminense', 16.0, 9.0, 2.0, 0.0, 11.0, '12']
SQL:

assistant: SELECT MAX("Against") FROM "Table" WHERE "Difference" = '12';