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

### Instruction:
What was the nationality of a point guard position in 1999-2001?

### Inputs:
table_name: table, columns: ['Player', 'Nationality', 'Position', 'Years for Grizzlies', 'School/Club Team']

### Response:
SELECT Nationality FROM table WHERE Position = point guard AND Years for Grizzlies = 1999-2001