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 | Date | Location | Pole Position | Fastest Lap | Race Winner | Constructor | Report |
| --- | --- | --- | --- | --- | --- | --- | --- |
| Brazilian Grand Prix | 13 March | Jacarepaguá | Keke Rosberg | Nelson Piquet | Nelson Piquet | Brabham - BMW | Report |
| United States Grand Prix West | 27 March | Long Beach | Patrick Tambay | Niki Lauda | John Watson | McLaren - Ford | Report |
| French Grand Prix | 17 April | Paul Ricard | Alain Prost | Alain Prost | Alain Prost | Renault | Report |
| San Marino Grand Prix | 1 May | Imola | René Arnoux | Riccardo Patrese | Patrick Tambay | Ferrari | Report |
| Monaco Grand Prix | 15 May | Monaco | Alain Prost | Nelson Piquet | Keke Rosberg | Williams - Ford | Report |
| Belgian Grand Prix | 22 May | Spa-Francorchamps | Alain Prost | Andrea de Cesaris | Alain Prost | Renault | Report |
| Detroit Grand Prix | 5 June | Detroit | René Arnoux | John Watson | Michele Alboreto | Tyrrell - Ford | Report |
| Canadian Grand Prix | 12 June | Circuit Gilles Villeneuve | René Arnoux | Patrick Tambay | René Arnoux | Ferrari | Report |
| British Grand Prix | 16 July | Silverstone | René Arnoux | Alain Prost | Alain Prost | Renault | Report |
| German Grand Prix | 7 August | Hockenheimring | Patrick Tambay | René Arnoux | René Arnoux | Ferrari | Report |
| Austrian Grand Prix | 14 August | Österreichring | Patrick Tambay | Alain Prost | Alain Prost | Renault | Report |
| Dutch Grand Prix | 28 August | Zandvoort | Nelson Piquet | René Arnoux | René Arnoux | Ferrari | Report |
| Italian Grand Prix | 11 September | Monza | Riccardo Patrese | Nelson Piquet | Nelson Piquet | Brabham - BMW | Report |
| European Grand Prix | 25 September | Brands Hatch | Elio de Angelis | Nigel Mansell | Nelson Piquet | Brabham - BMW | Report |
| South African Grand Prix | 15 October | Kyalami | Patrick Tambay | Nelson Piquet | Riccardo Patrese | Brabham - BMW | Report |
Question:
Who held the pole position in SPA-Francorchamps?
Answer:
Alain Prost