user: Question: When the away team is Geelong, what is the highest crowd count?
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', '10.10 (70)', 'St Kilda', '10.7 (67)', 'MCG', 39380.0, '29 May 1971']
SQL:

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