Who wrote the episode with e4515 as the production code?
CREATE TABLE table_25750635_2 (
    written_by VARCHAR,
    production_code VARCHAR
)
SELECT written_by FROM table_25750635_2 WHERE production_code = "E4515"
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: Who wrote the episode with e4515 as the production code? ### Input: CREATE TABLE table_25750635_2 (
    written_by VARCHAR,
    production_code VARCHAR
) ### Response: SELECT written_by FROM table_25750635_2 WHERE production_code = "E4515"