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"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_31 (surface VARCHAR, date VARCHAR) Question: What type of surface was played on July 27, 2013? [/INST] SELECT surface FROM table_name_31 WHERE date = "july 27, 2013" </s>