On July 15, 1984 what surface was used?
CREATE TABLE table_name_15 (surface VARCHAR, date VARCHAR)
SELECT surface FROM table_name_15 WHERE date = "july 15, 1984"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_15 (surface VARCHAR, date VARCHAR) Question: On July 15, 1984 what surface was used? [/INST] SELECT surface FROM table_name_15 WHERE date = "july 15, 1984" </s>