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

### Instruction:
What team is from the United States and plays a guard position for the Grizzlies in 2012?

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

### Response:
SELECT School/Club Team FROM table WHERE Nationality = united states AND Position = guard AND Years for Grizzlies = 2012