How many cosponsors have a Date introduced of may 22, 2008?
CREATE TABLE table_name_15 (
    _number_of_cosponsors VARCHAR,
    date_introduced VARCHAR
)
SELECT COUNT(_number_of_cosponsors) FROM table_name_15 WHERE date_introduced = "may 22, 2008"
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 many cosponsors have a Date introduced of may 22, 2008? ### Input: CREATE TABLE table_name_15 (
    _number_of_cosponsors VARCHAR,
    date_introduced VARCHAR
) ### Response: SELECT COUNT(_number_of_cosponsors) FROM table_name_15 WHERE date_introduced = "may 22, 2008"