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_12 (title VARCHAR, catalog__number VARCHAR)
### Question:
What CD has a catalog # of PCR 502?
### Answer:
SELECT title FROM table_name_12 WHERE catalog__number = "pcr 502"