What capacity opened lessed than 1937 and is located in the region of champagne-ardenne?
CREATE TABLE table_13978 (
    "Stadium" text,
    "Capacity" real,
    "City" text,
    "Region" text,
    "Home Team" text,
    "Opened" real
)
SELECT "Capacity" FROM table_13978 WHERE "Opened" < '1937' AND "Region" = 'champagne-ardenne'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What capacity opened lessed than 1937 and is located in the region of champagne-ardenne? ### Input: CREATE TABLE table_13978 (
    "Stadium" text,
    "Capacity" real,
    "City" text,
    "Region" text,
    "Home Team" text,
    "Opened" real
) ### Response: SELECT "Capacity" FROM table_13978 WHERE "Opened" < '1937' AND "Region" = 'champagne-ardenne'