user: Question: What was the largest crowd when South Melbourne was the away team?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['St Kilda', '12.27 (99)', 'South Melbourne', '19.10 (124)', 'Moorabbin Oval', 18969.0, '5 June 1976']
SQL:

assistant: SELECT MAX("Crowd") FROM "Table" WHERE "Away team" = 'South Melbourne';