Who is the opponent for the winner outcome on a hard surface on August 27, 2011?
CREATE TABLE table_66780 (
    "Outcome" text,
    "Date" text,
    "Surface" text,
    "Opponent" text,
    "Score" text
)
SELECT "Opponent" FROM table_66780 WHERE "Outcome" = 'winner' AND "Surface" = 'hard' AND "Date" = 'august 27, 2011'
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: Who is the opponent for the winner outcome on a hard surface on August 27, 2011? ### Input: CREATE TABLE table_66780 (
    "Outcome" text,
    "Date" text,
    "Surface" text,
    "Opponent" text,
    "Score" text
) ### Response: SELECT "Opponent" FROM table_66780 WHERE "Outcome" = 'winner' AND "Surface" = 'hard' AND "Date" = 'august 27, 2011'