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

### Instruction:
Which Nickname has an Enrollment smaller than 501, and a Location of clarkesville?

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

### Response:
SELECT Nickname FROM table WHERE Enrollment < 501 AND Location = clarkesville