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_87 (a_side VARCHAR, catalog_number VARCHAR)
### Question:
What is the A-side for catalog 902?
### Answer:
SELECT a_side FROM table_name_87 WHERE catalog_number = "902"