Which Surface has a Score of 2009 wta tour?
CREATE TABLE table_33874 (
    "Player" text,
    "Ranking" text,
    "Event" text,
    "Surface" text,
    "Round" text,
    "Score" text
)
SELECT "Surface" FROM table_33874 WHERE "Score" = '2009 wta tour'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: Which Surface has a Score of 2009 wta tour? ### Input: CREATE TABLE table_33874 (
    "Player" text,
    "Ranking" text,
    "Event" text,
    "Surface" text,
    "Round" text,
    "Score" text
) ### Response: SELECT "Surface" FROM table_33874 WHERE "Score" = '2009 wta tour'