Which series had a release on 1939-07-15 with the 8863 production number?
CREATE TABLE table_name_53 (series VARCHAR, release_date VARCHAR, production_num VARCHAR)
SELECT series FROM table_name_53 WHERE release_date = "1939-07-15" AND production_num = "8863"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_53 (series VARCHAR, release_date VARCHAR, production_num VARCHAR) Question: Which series had a release on 1939-07-15 with the 8863 production number? [/INST] SELECT series FROM table_name_53 WHERE release_date = "1939-07-15" AND production_num = "8863" </s>