What is the date of the Sydney, Australia tournament with a hard surface?
CREATE TABLE table_name_50 (date VARCHAR, surface VARCHAR, tournament VARCHAR)
SELECT date FROM table_name_50 WHERE surface = "hard" AND tournament = "sydney, australia"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_50 (date VARCHAR, surface VARCHAR, tournament VARCHAR) Question: What is the date of the Sydney, Australia tournament with a hard surface? [/INST] SELECT date FROM table_name_50 WHERE surface = "hard" AND tournament = "sydney, australia" </s>