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"
### Context: CREATE TABLE table_name_97 (surface VARCHAR, date VARCHAR) ### Question: What was the surface on 23 October 2011? ### Answer: SELECT surface FROM table_name_97 WHERE date = "23 october 2011"