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_29163303_1 (partner VARCHAR, year VARCHAR, surface VARCHAR)
### Question:
Who was Bob Bryan's partner/s on a hard surface in 2003?
### Answer:
SELECT partner FROM table_29163303_1 WHERE year = 2003 AND surface = "Hard"