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

### Instruction:
How many parties are named the Center Alliance

### Inputs:
table_name: table, columns: ['English party name', 'Norwegian party name', 'Associated ideology', 'Current leader', 'International affiliation', '2013 Parliamentary election', 'County councils ( 2011 )']

### Response:
SELECT COUNT 2013 Parliamentary election FROM table WHERE English party name = Center Alliance