How many partners were there when the score was 7 6 (7 4) , 6 3?
CREATE TABLE table_2186447_1 (
    partner VARCHAR,
    score VARCHAR
)
SELECT COUNT(partner) FROM table_2186447_1 WHERE score = "7–6 (7–4) , 6–3"
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: How many partners were there when the score was 7 6 (7 4) , 6 3? ### Input: CREATE TABLE table_2186447_1 (
    partner VARCHAR,
    score VARCHAR
) ### Response: SELECT COUNT(partner) FROM table_2186447_1 WHERE score = "7–6 (7–4) , 6–3"