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 debate (Date VARCHAR, Num_of_Audience INTEGER)

### Question ###
List the dates of debates with number of audience bigger than 150

### Accurate SQL ###

SELECT Date FROM debate WHERE Num_of_Audience > 150