What was the surface in 1981?
CREATE TABLE table_name_56 (surface VARCHAR, date VARCHAR)
SELECT surface FROM table_name_56 WHERE date = 1981
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_56 (surface VARCHAR, date VARCHAR) Question: What was the surface in 1981? [/INST] SELECT surface FROM table_name_56 WHERE date = 1981 </s>