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_19 (episode VARCHAR, year VARCHAR, show VARCHAR)
### Question:
What is the Episode number of Ernest Dickerson in 2009 when the show was dexter?
### Answer:
SELECT episode FROM table_name_19 WHERE year = 2009 AND show = "dexter"