What are the carriers of devices that are in stock in more than a single shop?
CREATE TABLE shop (
    shop_id number,
    shop_name text,
    location text,
    open_date text,
    open_year number
)

CREATE TABLE device (
    device_id number,
    device text,
    carrier text,
    package_version text,
    applications text,
    software_platform text
)

CREATE TABLE stock (
    shop_id number,
    device_id number,
    quantity number
)
SELECT T2.carrier FROM stock AS T1 JOIN device AS T2 ON T1.device_id = T2.device_id GROUP BY T1.device_id HAVING COUNT(*) > 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 the carriers of devices that are in stock in more than a single shop? ### Input: CREATE TABLE shop (
    shop_id number,
    shop_name text,
    location text,
    open_date text,
    open_year number
)

CREATE TABLE device (
    device_id number,
    device text,
    carrier text,
    package_version text,
    applications text,
    software_platform text
)

CREATE TABLE stock (
    shop_id number,
    device_id number,
    quantity number
) ### Response: SELECT T2.carrier FROM stock AS T1 JOIN device AS T2 ON T1.device_id = T2.device_id GROUP BY T1.device_id HAVING COUNT(*) > 1