What is the size of the crowd for the game where the away team South Melbourne played?
CREATE TABLE table_name_39 (crowd INTEGER, away_team VARCHAR)
SELECT AVG(crowd) FROM table_name_39 WHERE away_team = "south melbourne"
### Context: CREATE TABLE table_name_39 (crowd INTEGER, away_team VARCHAR) ### Question: What is the size of the crowd for the game where the away team South Melbourne played? ### Answer: SELECT AVG(crowd) FROM table_name_39 WHERE away_team = "south melbourne"