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:
| Entrant | Constructor | Chassis | Engine † | Tyre | Driver | Rounds | Free Practice driver(s) |
| --- | --- | --- | --- | --- | --- | --- | --- |
| Scuderia Ferrari Marlboro | Ferrari | F2002 F2003-GA | Ferrari 051 Ferrari 052 | B | Michael Schumacher | All | N/A |
| Scuderia Ferrari Marlboro | Ferrari | F2002 F2003-GA | Ferrari 051 Ferrari 052 | B | Rubens Barrichello | All | N/A |
| BMW WilliamsF1 Team | Williams - BMW | FW25 | BMW P83 | M | Juan Pablo Montoya | All | N/A |
| BMW WilliamsF1 Team | Williams - BMW | FW25 | BMW P83 | M | Ralf Schumacher | 1–13, 15–16 | N/A |
| BMW WilliamsF1 Team | Williams - BMW | FW25 | BMW P83 | M | Marc Gené | 14 | N/A |
| West McLaren Mercedes | McLaren - Mercedes | MP4-17D | Mercedes FO110M Mercedes FO110P | M | David Coulthard | All | N/A |
| West McLaren Mercedes | McLaren - Mercedes | MP4-17D | Mercedes FO110M Mercedes FO110P | M | Kimi Räikkönen | All | N/A |
| Mild Seven Renault F1 Team | Renault | R23 R23B | Renault RS23 | M | Jarno Trulli | All | Allan McNish Franck Montagny |
| Mild Seven Renault F1 Team | Renault | R23 R23B | Renault RS23 | M | Fernando Alonso | All | Allan McNish Franck Montagny |
| Sauber Petronas | Sauber - Petronas | C22 | Petronas 03A | B | Nick Heidfeld | All | N/A |
| Sauber Petronas | Sauber - Petronas | C22 | Petronas 03A | B | Heinz-Harald Frentzen | All | N/A |
| Jordan Ford | Jordan - Ford | EJ13 | Ford RS1 | B | Giancarlo Fisichella | All | Zsolt Baumgartner Björn Wirdheim Satoshi Motoyama |
| Jordan Ford | Jordan - Ford | EJ13 | Ford RS1 | B | Ralph Firman | 1–12, 15–16 | Zsolt Baumgartner Björn Wirdheim Satoshi Motoyama |
| Jordan Ford | Jordan - Ford | EJ13 | Ford RS1 | B | Zsolt Baumgartner | 13–14 | Zsolt Baumgartner Björn Wirdheim Satoshi Motoyama |
| Jaguar Racing | Jaguar - Cosworth | R4 | Cosworth CR-5 | M | Mark Webber | All | N/A |
| Jaguar Racing | Jaguar - Cosworth | R4 | Cosworth CR-5 | M | Antônio Pizzonia | 1–11 | N/A |
| Jaguar Racing | Jaguar - Cosworth | R4 | Cosworth CR-5 | M | Justin Wilson | 12–16 | N/A |
| Lucky Strike BAR Honda | BAR - Honda | 005 | Honda RA003E | B | Jacques Villeneuve | 1–15 | N/A |
| Lucky Strike BAR Honda | BAR - Honda | 005 | Honda RA003E | B | Takuma Sato | 16 | N/A |
| Lucky Strike BAR Honda | BAR - Honda | 005 | Honda RA003E | B | Jenson Button | All | N/A |
| European Minardi Cosworth | Minardi - Cosworth | PS03 | Cosworth CR-3 | B | Justin Wilson | 1–11 | Matteo Bobbi Gianmaria Bruni |
| European Minardi Cosworth | Minardi - Cosworth | PS03 | Cosworth CR-3 | B | Nicolas Kiesa | 12–16 | Matteo Bobbi Gianmaria Bruni |
| European Minardi Cosworth | Minardi - Cosworth | PS03 | Cosworth CR-3 | B | Jos Verstappen | All | Matteo Bobbi Gianmaria Bruni |
| Panasonic Toyota Racing | Toyota | TF103 | Toyota RVX-03 | M | Olivier Panis | All | N/A |
| Panasonic Toyota Racing | Toyota | TF103 | Toyota RVX-03 | M | Cristiano da Matta | All | N/A |
Question:
who is the constructor when the driver is juan pablo montoya?
Answer:
Williams - BMW