Question: What was the nationality of the winner of the 2007 Masters of Formula 3?
Context: Derek Hayes (born 8 December 1977 in Dungannon) is a British former race driver from Northern Ireland who competed in various series including Formula Palmer Audi, Formula 3 Euroseries, NASCAR Busch Series and British Formula 3.  In the latter, he won one race at Brands Hatch on 8 July 2001.  He also took part in the 2001 Masters of Formula 3 race.  Hayes stopped racing full time after 2004 but returned to karting for the Dan Wheldon Memorial Kart Race in 2011. The 2014 Australian Drivers' Championship was a CAMS sanctioned Australian motor racing title, the winner of which was awarded the 2014 CAMS Gold Star.  It was the 58th Australian Drivers' Championship and the tenth to be contested with open wheel racing cars constructed in accordance with FIA Formula 3 regulations.  The championship began on 27 February at the Adelaide Parklands Circuit and ended on 2 November at Sydney Motorsport Park after seven rounds across five different states and territories.  Formula 3 Management Pty Ltd was appointed by CAMS as the Category Manager for the Championship.  The championship was promoted as the 2014 Formula 3 Australian Drivers' Championship with the winner awarded the 58th Australian Drivers' Championship and the 14th Australian Formula 3 Championship. The 2005 Australian Drivers' Championship was a CAMS sanctioned national motor racing title for drivers of cars conforming to Formula 3 regulations.  It was the first time Formula 3 had contested the Australian Drivers' Championship, with Formula Holden/Formula Brabham/Formula 4000 being demoted from ADC status after 16 years.  The title was contested over an eight round, 16 race series with the winner awarded the 2005 CAMS Gold Star.  The series, which was officially known as the Kumho Tyres Australian Formula 3 Championship for the Australian Drivers’ Championship, was organised and administered by Formula 3 Australia Inc.  It is recognised by the Confederation of Australian Motor Sport as the 49th Australian Drivers' Championship and as the fifth Australian Formula 3 Championship. Nicolas Hülkenberg (] , born 19 August 1987) is a German professional racing driver currently racing for the Renault Sport F1 Team.  In 2015, he also contested in two rounds of the 2015 FIA World Endurance Championship season for Porsche, winning the 2015 24 Hours of Le Mans in his first attempt.  He was the 2009 champion of the GP2 Series, and is a previous champion of both the Formula 3 Euro Series and A1 Grand Prix, as part of A1 Team Germany.  He is one of three drivers since 2005 to win the GP2 series championship in his debut season, the others being Lewis Hamilton and Nico Rosberg.  s of September 2017 , Hülkenberg holds the record for the most Formula One career starts without a podium finish, a record he broke when he failed to finish in his 129th race (the 2017 Singapore Grand Prix) and in so doing passed Adrian Sutil's previous record of 128. The 2007 Masters Series Hamburg presented by E.ON Hanse was the 101st edition of the Hamburg Masters tennis tournament.  Roger Federer defeated Rafael Nadal, ending Nadal's 81-match winning streak on clay.  Carlos Moyà reached his first Masters Series semifinal in three years, after languishing well outside the top-20 at the start of the year.  Lleyton Hewitt was also a surprise semi-finalist pushing Nadal to three sets.  This was Hewitt's first masters semi-final since Indian Wells in 2005.  Bob Bryan and Mike Bryan won the doubles title. The 2016 Australian Formula 3 Premier Series is an Australian motor racing competition for cars constructed in accordance with FIA Formula 3 regulations.  It is sanctioned by the Confederation of Australian Motor Sport (CAMS) as an Authorised Series, with Formula 3 Management Pty Ltd appointed as the Category Manager.  The series began on 2 April at Sandown Raceway and will end on 13 November at Sydney Motorsport Park, after seven triple-header rounds across three states.  This was the first Australian Formula 3 Premier Series to be contested, with the Australian Formula 3 Championship having been discontinued at the end of 2015. The 2007 Zandvoort Masters of Formula 3 @ Zolder was the seventeenth Masters of Formula 3 race held at Zolder on 5 August 2007.  It was won by Nico Hülkenberg, for ASM Formule 3. The 1999 Marlboro Masters of Formula 3 was the ninth Masters of Formula 3 race held at Circuit Park Zandvoort on 8 August 1999.  It was won by Marc Hynes, for Manor Motorsport.  This was the first Masters event held on the extended layout, having run on the Club Circuit in its first eight seasons. The 2009 Tango Masters of Formula 3 was the nineteenth Masters of Formula 3 race held at Circuit Park Zandvoort on 14 June 2009.  The race returned to Zandvoort after a two-year stay at Zolder.  It was won by Masters debutant Valtteri Bottas, for ART Grand Prix. The 2006 Australian Drivers' Championship was a CAMS sanctioned national motor racing title open to Formula 3 cars.  The title was contested over an eight round, 16 race series, with the winner being awarded the 2006 CAMS Gold Star.  The series was organised and administered by Formula 3 Australia Inc. and was officially known as the “2006 Khumo Tyres Australian Formula 3 Championship for the Australian Drivers' Championship”.  It is recognised by CAMS as the 50th Australian Drivers' Championship and as the 6th Australian Formula 3 Championship.
Answer: German