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

### Instruction:
What june 21–22, 2011 polling has green smaller than 13?

### Inputs:
table_name: table, columns: ['Polling Firm', 'Date of Polling', 'Link', 'Liberal', 'Green']

### Response:
SELECT Polling Firm FROM table WHERE Green < 13 AND Date of Polling = june 21–22, 2011