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_30 (catalog_number VARCHAR, a_side VARCHAR)
### Question:
What is the catalog number of Venus Demilo's A-side?
### Answer:
SELECT catalog_number FROM table_name_30 WHERE a_side = "venus demilo"