What are the coupon amount of the coupons owned by both good and bad customers?
CREATE TABLE Discount_Coupons (
    coupon_amount VARCHAR,
    coupon_id VARCHAR
)

CREATE TABLE customers (
    coupon_id VARCHAR,
    good_or_bad_customer VARCHAR
)
SELECT T1.coupon_amount FROM Discount_Coupons AS T1 JOIN customers AS T2 ON T1.coupon_id = T2.coupon_id WHERE T2.good_or_bad_customer = 'good' INTERSECT SELECT T1.coupon_amount FROM Discount_Coupons AS T1 JOIN customers AS T2 ON T1.coupon_id = T2.coupon_id WHERE T2.good_or_bad_customer = 'bad'
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 are the coupon amount of the coupons owned by both good and bad customers? ### Input: CREATE TABLE Discount_Coupons (
    coupon_amount VARCHAR,
    coupon_id VARCHAR
)

CREATE TABLE customers (
    coupon_id VARCHAR,
    good_or_bad_customer VARCHAR
) ### Response: SELECT T1.coupon_amount FROM Discount_Coupons AS T1 JOIN customers AS T2 ON T1.coupon_id = T2.coupon_id WHERE T2.good_or_bad_customer = 'good' INTERSECT SELECT T1.coupon_amount FROM Discount_Coupons AS T1 JOIN customers AS T2 ON T1.coupon_id = T2.coupon_id WHERE T2.good_or_bad_customer = 'bad'