What kind of surface was the Tournament at Sunderland played on?
CREATE TABLE table_name_32 (
    surface VARCHAR,
    tournament VARCHAR
)
SELECT surface FROM table_name_32 WHERE tournament = "sunderland"
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: What kind of surface was the Tournament at Sunderland played on? ### Input: CREATE TABLE table_name_32 (
    surface VARCHAR,
    tournament VARCHAR
) ### Response: SELECT surface FROM table_name_32 WHERE tournament = "sunderland"