Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_2 ( date_of_polling VARCHAR, liberal VARCHAR, polling_firm VARCHAR, green VARCHAR )

### Question ###
On what date of polling was the Polling Firm forum research with 7 green and less than 30 liberals?

### Accurate SQL ###

SELECT date_of_polling FROM table_name_2 WHERE polling_firm = "forum research" AND green = 7 AND liberal < 30