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

### Instruction:
When the corinthians have a position of less than 5, what is the average against?

### Inputs:
table_name: table, columns: ['Position', 'Team', 'Points', 'Played', 'Against', 'Difference']

### Response:
SELECT AVG Against FROM table WHERE Position < 5 AND Team = corinthians