user: Question: What is the total goal difference with more than 38 played and more than 47 goals against?
Columns: ['Position', 'Club', 'Played', 'Points', 'Wins', 'Draws', 'Losses', 'Goals for', 'Goals against', 'Goal Difference']
Types: ['real', 'text', 'real', 'text', 'real', 'real', 'real', 'real', 'real', 'real']
Sample row: [1.0, 'AD Almería', 38.0, '47+9', 21.0, 5.0, 12.0, 62.0, 44.0, 18.0]
SQL:

assistant: SELECT SUM("Goal Difference") FROM "Table" WHERE "Goals against" > 47.0 AND "Played" > 38.0;