user: Question: Which Opposition has a Year smaller than 1911, and a Venue of Old Trafford?
Columns: ['Opposition', 'Score', 'Venue', 'City', 'Year']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['Derbyshire', '589', 'Stanley Park', 'Blackpool', 1994.0]
SQL:

assistant: SELECT "Opposition" FROM "Table" WHERE "Year" < 1911.0 AND "Venue" = 'Old Trafford';