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

### Instruction:
What is the nationality of the player who played guard in 2006?

### Inputs:
table_name: table, columns: ['Name', 'Nationality', 'School/Club', 'Season(s)', 'Position(s)']

### Response:
SELECT Nationality FROM table WHERE Position(s) = guard AND Season(s) = 2006