user: Question: Who was the opponent at the game in Belgrade with a 0:2 result?
Columns: ['Date', 'City', 'Opponent', 'Results¹', 'Type of game']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['May 4', 'London, England', 'England', '0:2', 'Friendly']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "City" = 'Belgrade' AND "Results¹" = '0:2';