user: Question: What June 21–22, 2011 polling has green smaller than 13?
Columns: ['Polling Firm', 'Date of Polling', 'Link', 'Liberal', 'Green']
Types: ['text', 'text', 'text', 'real', 'real']
Sample row: ['Angus Reid', 'October 4–5, 2011', 'PDF', 37.0, 3.0]
SQL:

assistant: SELECT "Polling Firm" FROM "Table" WHERE "Green" < 13.0 AND "Date of Polling" = 'June 21–22, 2011';