user: Question: Which Opposition has a Year smaller than 1977, and a City of Manchester?
Columns: ['Score', 'Opposition', 'Venue', 'City', 'Year']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [25.0, 'Derbyshire', 'Old Trafford', 'Manchester', 1871.0]
SQL:

assistant: SELECT "Opposition" FROM "Table" WHERE "Year" < 1977.0 AND "City" = 'Manchester';