user: Question: Who was the opponent in Belgrade and had a result of 5:2?
Columns: ['Date', 'City', 'Opponent', 'Results¹', 'Type of game']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['January 16', 'Cairo , Egypt', 'Egypt', '3:1', 'Friendly']
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "City" = 'Belgrade' AND "Results¹" = '5:2';