user: Question: Who watches North Melbourne when they are away?
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', '18.15 (123)', 'North Melbourne', '15.12 (102)', 'MCG', 8662.0, '24 May 1930']
SQL:

assistant: SELECT "Crowd" FROM "Table" WHERE "Away team" = 'North Melbourne';