Name the number of writers for airdate of 15 july 1967
CREATE TABLE table_20345624_2 (
    writer VARCHAR,
    original_airdate VARCHAR
)
SELECT COUNT(writer) FROM table_20345624_2 WHERE original_airdate = "15 July 1967"
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: Name the number of writers for airdate of 15 july 1967 ### Input: CREATE TABLE table_20345624_2 (
    writer VARCHAR,
    original_airdate VARCHAR
) ### Response: SELECT COUNT(writer) FROM table_20345624_2 WHERE original_airdate = "15 July 1967"