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_31 (written_by VARCHAR, originalairdate VARCHAR)
### Question:
What is Written By, when Originalairdate is 25 April 1993?
### Answer:
SELECT written_by FROM table_name_31 WHERE originalairdate = "25 april 1993"