Which match did FCR 2001 Duisburg participate as the opponent?
CREATE TABLE table_name_39 (
    match INTEGER,
    opponent VARCHAR
)
SELECT SUM(match) FROM table_name_39 WHERE opponent = "fcr 2001 duisburg"
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 match did FCR 2001 Duisburg participate as the opponent? ### Input: CREATE TABLE table_name_39 (
    match INTEGER,
    opponent VARCHAR
) ### Response: SELECT SUM(match) FROM table_name_39 WHERE opponent = "fcr 2001 duisburg"