Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the highest goals against when points are larger than 31, the goal difference is smaller than 9, wins are 13, and draws are larger than 6?

### Inputs:
table_name: table, columns: ['Position', 'Club', 'Played', 'Points', 'Wins', 'Draws', 'Losses', 'Goals for', 'Goals against', 'Goal Difference']

### Response:
SELECT MAX Goals against FROM table WHERE Points > 31 AND Goal Difference < 9 AND Wins = 13 AND Draws > 6