user: Question: Who is the opposition on the Division 1 game at Stamford Bridge?
Columns: ['Date', 'Venue', 'Opposition', 'Score', 'Competition']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['24 Mar 1990', 'Roker Park', 'West Ham Utd', '4-3', 'Division 2']
SQL:

assistant: SELECT "Opposition" FROM "Table" WHERE "Competition" = 'Division 1' AND "Venue" = 'Stamford Bridge';