user: Question: What is the crowd size when the away team was South Melbourne?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Melbourne', '9.12 (66)', 'St Kilda', '14.14 (98)', 'MCG', 44737.0, '7 April 1973']
SQL:

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