How many dates originally aired episodes located in Philadelphia, pennsylvania?
CREATE TABLE table_24798489_2 (
    original_airdate VARCHAR,
    location VARCHAR
)
SELECT COUNT(original_airdate) FROM table_24798489_2 WHERE location = "Philadelphia, Pennsylvania"
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 dates originally aired episodes located in Philadelphia, pennsylvania? ### Input: CREATE TABLE table_24798489_2 (
    original_airdate VARCHAR,
    location VARCHAR
) ### Response: SELECT COUNT(original_airdate) FROM table_24798489_2 WHERE location = "Philadelphia, Pennsylvania"