Which Surface has a Score of 2009 wta tour?
CREATE TABLE table_name_13 (surface VARCHAR, score VARCHAR)
SELECT surface FROM table_name_13 WHERE score = "2009 wta tour"
### Context: CREATE TABLE table_name_13 (surface VARCHAR, score VARCHAR) ### Question: Which Surface has a Score of 2009 wta tour? ### Answer: SELECT surface FROM table_name_13 WHERE score = "2009 wta tour"