What are all the policy types of the customer that has the most policies listed?
CREATE TABLE customers (
    customer_id VARCHAR,
    customer_name VARCHAR
)

CREATE TABLE available_policies (
    policy_type_code VARCHAR,
    policy_id VARCHAR
)

CREATE TABLE customers_policies (
    customer_id VARCHAR,
    policy_id VARCHAR
)
SELECT DISTINCT t3.policy_type_code FROM customers AS t1 JOIN customers_policies AS t2 ON t1.customer_id = t2.customer_id JOIN available_policies AS t3 ON t2.policy_id = t3.policy_id WHERE t1.customer_name = (SELECT t1.customer_name FROM customers AS t1 JOIN customers_policies AS t2 ON t1.customer_id = t2.customer_id GROUP BY t1.customer_name ORDER BY COUNT(*) DESC LIMIT 1)
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 all the policy types of the customer that has the most policies listed? ### Input: CREATE TABLE customers (
    customer_id VARCHAR,
    customer_name VARCHAR
)

CREATE TABLE available_policies (
    policy_type_code VARCHAR,
    policy_id VARCHAR
)

CREATE TABLE customers_policies (
    customer_id VARCHAR,
    policy_id VARCHAR
) ### Response: SELECT DISTINCT t3.policy_type_code FROM customers AS t1 JOIN customers_policies AS t2 ON t1.customer_id = t2.customer_id JOIN available_policies AS t3 ON t2.policy_id = t3.policy_id WHERE t1.customer_name = (SELECT t1.customer_name FROM customers AS t1 JOIN customers_policies AS t2 ON t1.customer_id = t2.customer_id GROUP BY t1.customer_name ORDER BY COUNT(*) DESC LIMIT 1)