Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_93 (surface VARCHAR, partner VARCHAR, date VARCHAR)
### Question:
Which surface had a partner of Sandrine Testud on November 14, 1999?
### Answer:
SELECT surface FROM table_name_93 WHERE partner = "sandrine testud" AND date = "november 14, 1999"