What's Round has a Surface of hard and Opponent of Jelena Simic?
CREATE TABLE table_name_51 (round VARCHAR, surface VARCHAR, opponent VARCHAR)
SELECT round FROM table_name_51 WHERE surface = "hard" AND opponent = "jelena simic"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_51 (round VARCHAR, surface VARCHAR, opponent VARCHAR) Question: What's Round has a Surface of hard and Opponent of Jelena Simic? [/INST] SELECT round FROM table_name_51 WHERE surface = "hard" AND opponent = "jelena simic" </s>