What surface was used on July 17, 1983?
CREATE TABLE table_name_30 (surface VARCHAR, date VARCHAR)
SELECT surface FROM table_name_30 WHERE date = "july 17, 1983"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_30 (surface VARCHAR, date VARCHAR) Question: What surface was used on July 17, 1983? [/INST] SELECT surface FROM table_name_30 WHERE date = "july 17, 1983" </s>