What type of surface was played on July 27, 2013?
CREATE TABLE table_name_31 (surface VARCHAR, date VARCHAR)
SELECT surface FROM table_name_31 WHERE date = "july 27, 2013"
### Context: CREATE TABLE table_name_31 (surface VARCHAR, date VARCHAR) ### Question: What type of surface was played on July 27, 2013? ### Answer: SELECT surface FROM table_name_31 WHERE date = "july 27, 2013"