question: The 2014 WEC 6 Hours of Spa-Francorchamps had a winning team that included the Swiss driver who previously competed for which team in Formula One?
answer: Scuderia Toro Rosso
context: Title: Sébastien Buemi
  Passage: Sébastien Olivier Buemi (born 31 October 1988) is a Swiss professional racing driver, who formerly competed for Scuderia Toro Rosso in Formula One.  Buemi is currently a reserve driver for Scuderia Toro Rosso's sister team, Red Bull Racing, as well as being a member of Toyota's FIA World Endurance Championship squad and e.dams Renault in the FIA Formula E Championship.  Along with teammate Anthony Davidson, Buemi became World Champion in the LMP1 class of the FIA World Endurance Championship, in 2014.  He won the second ever Formula E championship, the season held across 2015–2016, by two points for setting the fastest lap time in the final race despite not finishing the event.
  Title: 2017 6 Hours of Nürburgring
  Passage: The 2017 6 Hours of Nürburgring (formally the WEC 6 Hours of Nürburgring) was an endurance sports car racing event held at the Nürburgring, Nürburg, Germany on 16 July 2017.
  Title: 2014 6 Hours of Spa-Francorchamps
  Passage: The 2014 WEC 6 Hours of Spa-Francorchamps, formally known as the WEC 6 Heures de Spa-Francorchamps, was an endurance sports car racing event held at the Circuit de Spa-Francorchamps, Spa, Belgium on 2–3 May 2014.  Spa-Francorchamps served as the second race of the 2014 FIA World Endurance Championship.  Toyota's Anthony Davidson, Sébastien Buemi, and Nicolas Lapierre led the field to the checkered flag for their second consecutive victory of the season, ahead of Audi and the sister Toyota.  The LMP2 category also had its second consecutive winner with G-Drive Racing ahead of Jota Sport's guest entry in the series.  AF Corse Ferrari held off Porsche Team Manthey in the LMGTE Pro class, while another AF Corse Ferrari won the LMGTE Am category ahead of two Aston Martins.
citations: 2014 6 Hours of Spa-Francorchamps Sébastien Buemi