user: Question: What was the away team that played at Princes Park?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Richmond', '19.16 (130)', 'Melbourne', '8.11 (59)', 'MCG', 34212.0, '25 April 1978']
SQL:

assistant: SELECT "Away team" FROM "Table" WHERE "Venue" = 'Princes Park';