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

### Instruction:
Which Joined has a Nickname of knights, and an Enrollment larger than 2,960?

### Inputs:
table_name: table, columns: ['Institution', 'Location', 'Nickname', 'Founded', 'Enrollment', 'Joined']

### Response:
SELECT SUM Joined FROM table WHERE Nickname = knights AND Enrollment > 2,960