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

### Instruction:
Name the number of womens doubles for 2011 rio de janeiro

### Inputs:
table_name: table, columns: ['Year Location', 'Mens Singles', 'Womens Singles', 'Mens Doubles', 'Womens Doubles']

### Response:
SELECT COUNT Womens Doubles FROM table WHERE Year Location = 2011 Rio de Janeiro