Which Opponent in the final has a Score of 6 3, 3 6, 6 8?
CREATE TABLE table_50088 (
    "Date" real,
    "Tournament" text,
    "Surface" text,
    "Partnering" text,
    "Opponent in the final" text,
    "Score" text
)
SELECT "Opponent in the final" FROM table_50088 WHERE "Score" = '6–3, 3–6, 6–8'
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 Opponent in the final has a Score of 6 3, 3 6, 6 8? ### Input: CREATE TABLE table_50088 (
    "Date" real,
    "Tournament" text,
    "Surface" text,
    "Partnering" text,
    "Opponent in the final" text,
    "Score" text
) ### Response: SELECT "Opponent in the final" FROM table_50088 WHERE "Score" = '6–3, 3–6, 6–8'