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_95 (capacity VARCHAR, opened VARCHAR, region VARCHAR)

### Question ###
What capacity opened lessed than 1937 and is located in the region of champagne-ardenne?

### Accurate SQL ###

SELECT capacity FROM table_name_95 WHERE opened < 1937 AND region = "champagne-ardenne"