What is the sum of the episode numbers where chip esten is the 4th performer and christopher smith was the 2nd performer?
CREATE TABLE table_name_37 (
    episode INTEGER,
    performer_4 VARCHAR,
    performer_2 VARCHAR
)
SELECT SUM(episode) FROM table_name_37 WHERE performer_4 = "chip esten" AND performer_2 = "christopher smith"
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 is the sum of the episode numbers where chip esten is the 4th performer and christopher smith was the 2nd performer? ### Input: CREATE TABLE table_name_37 (
    episode INTEGER,
    performer_4 VARCHAR,
    performer_2 VARCHAR
) ### Response: SELECT SUM(episode) FROM table_name_37 WHERE performer_4 = "chip esten" AND performer_2 = "christopher smith"