What surface did Ruxandra Dragomir play on?
CREATE TABLE table_name_13 (surface VARCHAR, partner VARCHAR)
SELECT surface FROM table_name_13 WHERE partner = "ruxandra dragomir"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_13 (surface VARCHAR, partner VARCHAR) Question: What surface did Ruxandra Dragomir play on? [/INST] SELECT surface FROM table_name_13 WHERE partner = "ruxandra dragomir" </s>