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_14035132_3 (production_code VARCHAR, no_in_series VARCHAR)

### Question ###
What's the production code of the episode with a series number 37b? 

### Accurate SQL ###

SELECT production_code FROM table_14035132_3 WHERE no_in_series = "37b"