What is the release date for the standard cd release format in north america?
CREATE TABLE table_name_18 (release_date VARCHAR, release_format VARCHAR, country VARCHAR)
SELECT release_date FROM table_name_18 WHERE release_format = "standard cd" AND country = "north america"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_18 (release_date VARCHAR, release_format VARCHAR, country VARCHAR) Question: What is the release date for the standard cd release format in north america? [/INST] SELECT release_date FROM table_name_18 WHERE release_format = "standard cd" AND country = "north america" </s>