What was the average crowd size when the away team was South Melbourne?
CREATE TABLE table_name_63 (
    crowd INTEGER,
    away_team VARCHAR
)
SELECT AVG(crowd) FROM table_name_63 WHERE away_team = "south melbourne"
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 was the average crowd size when the away team was South Melbourne? ### Input: CREATE TABLE table_name_63 (
    crowd INTEGER,
    away_team VARCHAR
) ### Response: SELECT AVG(crowd) FROM table_name_63 WHERE away_team = "south melbourne"