Which 2009 has a 2008 of wta premier mandatory tournaments?
CREATE TABLE table_name_64 (Id VARCHAR)
SELECT 2009 FROM table_name_64 WHERE 2008 = "wta premier mandatory tournaments"
### Context: CREATE TABLE table_name_64 (Id VARCHAR) ### Question: Which 2009 has a 2008 of wta premier mandatory tournaments? ### Answer: SELECT 2009 FROM table_name_64 WHERE 2008 = "wta premier mandatory tournaments"