user: Question: What was the away team that scored 8.15 (63)?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Hawthorn', '9.22 (76)', 'Richmond', '8.9 (57)', 'Glenferrie Oval', 21000.0, '27 April 1957']
SQL:

assistant: SELECT "Away team" FROM "Table" WHERE "Away team score" = '8.15 (63)';