What was the surface on 23 October 2011?
CREATE TABLE table_name_97 (surface VARCHAR, date VARCHAR)
SELECT surface FROM table_name_97 WHERE date = "23 october 2011"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_97 (surface VARCHAR, date VARCHAR) Question: What was the surface on 23 October 2011? [/INST] SELECT surface FROM table_name_97 WHERE date = "23 october 2011" </s>