What is the score when To par was 3, in South Africa, for Richard Sterne?
CREATE TABLE table_13484 (
    "Place" text,
    "Player" text,
    "Country" text,
    "Score" real,
    "To par" text
)
SELECT AVG("Score") FROM table_13484 WHERE "To par" = '−3' AND "Country" = 'south africa' AND "Player" = 'richard sterne'
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 is the score when To par was 3, in South Africa, for Richard Sterne? ### Input: CREATE TABLE table_13484 (
    "Place" text,
    "Player" text,
    "Country" text,
    "Score" real,
    "To par" text
) ### Response: SELECT AVG("Score") FROM table_13484 WHERE "To par" = '−3' AND "Country" = 'south africa' AND "Player" = 'richard sterne'