user: Question: What was the away team's score when the crowd at arden street oval was larger than 31481?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Geelong', '18.17 (125)', 'Hawthorn', '6.7 (43)', 'Corio Oval', 9000.0, '23 August 1930']
SQL:

assistant: SELECT "Away team score" FROM "Table" WHERE "Crowd" > 31481.0 AND "Venue" = 'arden street oval';