What was the surface for the game that was played on 12-Apr-2005?
CREATE TABLE table_name_50 (surface VARCHAR, date VARCHAR)
SELECT surface FROM table_name_50 WHERE date = "12-apr-2005"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_50 (surface VARCHAR, date VARCHAR) Question: What was the surface for the game that was played on 12-Apr-2005? [/INST] SELECT surface FROM table_name_50 WHERE date = "12-apr-2005" </s>