What release date has 6998 as the production num.?
CREATE TABLE table_name_77 (
    release_date VARCHAR,
    production_num VARCHAR
)
SELECT release_date FROM table_name_77 WHERE production_num = "6998"
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 release date has 6998 as the production num.? ### Input: CREATE TABLE table_name_77 (
    release_date VARCHAR,
    production_num VARCHAR
) ### Response: SELECT release_date FROM table_name_77 WHERE production_num = "6998"