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

### Instruction:
How many locations have been used for ballparks named Memorial Stadium?

### Inputs:
table_name: table, columns: ['Ballpark', 'Location', 'Team', 'Opened', 'Closed', 'Demod', 'Current Status']

### Response:
SELECT COUNT Location FROM table WHERE Ballpark = Memorial Stadium