user: Question: What was the score for the away team when they played at Lake Oval?
Columns: ['Home team', 'Home team score', 'Away team', 'Away team score', 'Venue', 'Crowd', 'Date']
Types: ['text', 'text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['South Melbourne', '31.9 (195)', 'Footscray', '15.16 (106)', 'Lake Oval', 9815.0, '4 August 1979']
SQL:

assistant: SELECT "Away team score" FROM "Table" WHERE "Venue" = 'Lake Oval';