Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_23 (episode__number VARCHAR, original_airdate VARCHAR)
### Question:
What is the episode # of the episode that aired on April 5, 1998?
### Answer:
SELECT episode__number FROM table_name_23 WHERE original_airdate = "april 5, 1998"