Which competition had an opponent of Police at the Selayang Stadium?
CREATE TABLE table_name_31 (
    competition VARCHAR,
    opponent VARCHAR,
    venue VARCHAR
)
SELECT competition FROM table_name_31 WHERE opponent = "police" AND venue = "selayang stadium"
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: Which competition had an opponent of Police at the Selayang Stadium? ### Input: CREATE TABLE table_name_31 (
    competition VARCHAR,
    opponent VARCHAR,
    venue VARCHAR
) ### Response: SELECT competition FROM table_name_31 WHERE opponent = "police" AND venue = "selayang stadium"