What was the season number for production code E2110?
CREATE TABLE table_21781578_2 (
    season_no VARCHAR,
    production_code VARCHAR
)
SELECT season_no FROM table_21781578_2 WHERE production_code = "E2110"
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 was the season number for production code E2110? ### Input: CREATE TABLE table_21781578_2 (
    season_no VARCHAR,
    production_code VARCHAR
) ### Response: SELECT season_no FROM table_21781578_2 WHERE production_code = "E2110"