Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Race | Circuit | Date | Pole position | Fastest lap | Winning driver | Constructor | Report |
| --- | --- | --- | --- | --- | --- | --- | --- |
| Argentine Grand Prix | Buenos Aires | 13 January | Stirling Moss | Stirling Moss | Juan Manuel Fangio | Maserati | Report |
| Monaco Grand Prix | Monaco | 19 May | Juan Manuel Fangio | Juan Manuel Fangio | Juan Manuel Fangio | Maserati | Report |
| Indianapolis 500 | Indianapolis | 30 May | Pat O'Connor | Jim Rathmann | Sam Hanks | Epperly - Offenhauser | Report |
| French Grand Prix | Rouen-Les-Essarts | 7 July | Juan Manuel Fangio | Luigi Musso | Juan Manuel Fangio | Maserati | Report |
| British Grand Prix | Aintree | 20 July | Stirling Moss | Stirling Moss | Tony Brooks Stirling Moss | Vanwall | Report |
| German Grand Prix | Nürburgring | 4 August | Juan Manuel Fangio | Juan Manuel Fangio | Juan Manuel Fangio | Maserati | Report |
| Pescara Grand Prix | Pescara | 18 August | Juan Manuel Fangio | Stirling Moss | Stirling Moss | Vanwall | Report |
| Italian Grand Prix | Monza | 8 September | Stuart Lewis-Evans | Tony Brooks | Stirling Moss | Vanwall | Report |
Question:
What driver was the winner when constructor was Maserati at the Monaco grand prix?
Answer:
Juan Manuel Fangio