user: Question: What is the highest Goal Difference when the goals against were less than 76, and the position larger than 5, and a Played larger than 30?
Columns: ['Position', 'Club', 'Played', 'Points', 'Wins', 'Draws', 'Losses', 'Goals for', 'Goals against', 'Goal Difference']
Types: ['real', 'text', 'real', 'real', 'real', 'real', 'real', 'real', 'real', 'real']
Sample row: [1.0, 'CA Osasuna', 30.0, 42.0, 17.0, 8.0, 5.0, 76.0, 33.0, 43.0]
SQL:

assistant: SELECT MAX("Goal Difference") FROM "Table" WHERE "Goals against" < 76.0 AND "Position" > 5.0 AND "Played" > 30.0;