user: Question: What was the largest crowd where Carlton 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: ['North Melbourne', '7.9 (51)', 'Richmond', '10.9 (69)', 'Arden Street Oval', 7000.0, '11 July 1925']
SQL:

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