user: Question: what is the crowd when the grand finalist was South Melbourne?
Columns: ['Year', 'Winners', 'Grand Finalist', 'Scores', 'Venue', 'Crowd', 'Margin', 'Season Result']
Types: ['real', 'text', 'text', 'text', 'text', 'real', 'real', 'text']
Sample row: [1956.0, 'South Melbourne', 'Carlton', '13.16 (94) – 13.10 (88)', 'Lake Oval', 32450.0, 6.0, '9th']
SQL:

assistant: SELECT "Crowd" FROM "Table" WHERE "Grand Finalist" = 'South Melbourne';