how much money was requested on the show which aired on 4 september 2011?
CREATE TABLE table_name_87 (
    money_requested__ INTEGER,
    first_aired VARCHAR
)
SELECT SUM(money_requested__) AS £_ FROM table_name_87 WHERE first_aired = "4 september 2011"
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: how much money was requested on the show which aired on 4 september 2011? ### Input: CREATE TABLE table_name_87 (
    money_requested__ INTEGER,
    first_aired VARCHAR
) ### Response: SELECT SUM(money_requested__) AS £_ FROM table_name_87 WHERE first_aired = "4 september 2011"