user: Question: When the crowd was larger than 20915 what did the Away team score?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Footscray', '7.12 (54)', 'South Melbourne', '8.9 (57)', 'Western Oval', 15322.0, '9 July 1960']
SQL:

assistant: SELECT "Away team score" FROM "Table" WHERE "Crowd" > 20915.0;