user: Question: On what date of polling was the Polling Firm Forum Research with 7 green and less than 30 liberals?
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 "Date of Polling" FROM "Table" WHERE "Polling Firm" = 'Forum Research' AND "Green" = 7.0 AND "Liberal" < 30.0;