Question: What nationality are the Johan Cruyff Shield and SBV Vitesses football clubs?
Context: The 2016 Johan Cruyff Shield was the twenty-first Johan Cruyff Shield (Dutch: "Johan Cruijff Schaal"), an annual Dutch football match played between the winners of the previous season's Eredivisie and KNVB Cup.  The match was contested by Feyenoord, the 2015–16 KNVB Cup winners, and PSV, champions of the 2015–16 Eredivisie.  It was held at the Amsterdam Arena on 31 July 2016.  Watched by a crowd of 30,000 and a television audience of 1.7 million, PSV won the match 1–0. The 2015–16 KNVB Cup is the 98th season of the Dutch national football knockout tournament.  The winner qualifies for the group stage of the Europa League the following season and the Johan Cruyff Shield, the Dutch Supercup match between the Cup winner and the champions of the Eredivisie. The match for 2008 Johan Cruyff Shield was held on 23 August 2008 in the Amsterdam Arena.  The match, which inaugurated the 2008–09 season in Dutch football, featured the 2007–08 Eredivisie champions PSV and 2007–08 KNVB Cup winners Feyenoord.  PSV won 2–0. The 2017 Johan Cruyff Shield was the twenty-second Johan Cruyff Shield (Dutch: "Johan Cruijff Schaal"), an annual Dutch football match played between the winners of the previous season's Eredivisie and KNVB Cup.  The match was contested by Feyenoord, champions of the 2016–17 Eredivisie, and Vitesse, winners of the 2016–17 KNVB Cup.  It was held at the De Kuip on 5 August 2017. The 2013 Johan Cruyff Shield was the eighteenth Johan Cruyff Shield (Dutch: "Johan Cruijff Schaal"), an annual Dutch football match played between the winners of the previous season's Eredivisie and KNVB Cup.  The match was contested by AZ, the 2012–13 KNVB Cup winners, and Ajax, champions of the 2012–13 Eredivisie.  It was held at the Amsterdam Arena on 27 July 2013.  Ajax won the match 3–2 after extra time. The Johan Cruyff Shield (Dutch: Johan Cruijff Schaal ) is a football trophy in the Netherlands named after the Dutch football player Johan Cruyff, also often referred to as the Dutch Super Cup.  The winner is decided in one match only, played by the winner of the national football league (the Eredivisie) and the winner of the national KNVB Cup.  In the event of a team winning both the Eredivisie and the KNVB Cup, the Johan Cruyff Shield will be contested between that team and the runner up in the national league.  The match traditionally opens the Dutch football season in August one week before the Eredivisie starts. The 2015 Johan Cruyff Shield was the twentieth Johan Cruyff Shield (Dutch: "Johan Cruijff Schaal"), an annual Dutch football match played between the winners of the previous season's Eredivisie and KNVB Cup.  The match was contested by FC Groningen, the 2014–15 KNVB Cup winners, and PSV, champions of the 2014–15 Eredivisie.  It was held at the Amsterdam Arena on 2 August 2015.  PSV won the match 3–0. Stichting Betaald Voetbal Vitesse, commonly known as SBV Vitesse, Vitesse or Vitesse Arnhem, is a Dutch football club based in Arnhem, which was founded on 14 May 1892.  The club has enjoyed some success in the Eredivisie, has featured in the UEFA Cup competition and became the first Dutch football club to be owned by a foreigner when it was taken over by Russian businessman Alexander Chigirinsky in 2010.  Since 1998, the club has played its home games at the GelreDome.  Their best result in the Eredivisie was third place in 1997–98.  The club won the KNVB Cup in 2016–17. The 2009 Johan Cruyff Shield was held on 25 July 2009 in the Amsterdam Arena.  The match featured the 2008–09 Eredivisie champions AZ and 2008–09 KNVB Cup winners Heerenveen.  The match inaugurated the 2009–10 season in Dutch football. The 2014 Johan Cruyff Shield was the nineteenth Johan Cruyff Shield (Dutch: "Johan Cruijff Schaal"), an annual Dutch football match played between the winners of the previous season's Eredivisie and KNVB Cup.  The match was contested by PEC Zwolle, the 2013–14 KNVB Cup winners, and Ajax, champions of the 2013–14 Eredivisie.  It was held at the Amsterdam Arena on 3 August 2014.  PEC Zwolle won the match 1–0.
Answer: Dutch