Question: What is the main international airport in the city where the men's singles winner at Wimbledon in 1980 comes from?

full_context: Document 1: 2017 Wimbledon Championships – Men's Singles: Roger Federer achieved his record eighth Wimbledon and 19th Grand Slam men's singles title, defeating Marin Čilić in the final, 6 -- 3, 6 -- 1, 6 -- 4. Federer thus became the only male player to win the Wimbledon singles title eight times, as well as only the second man in the Open era, after Björn Borg in 1976, to win Wimbledon without losing a set. This was Federer's 70th appearance at a Grand Slam, tying the record for male players and a record - breaking 11th men's singles final at the same Grand Slam tournament. In addition, by virtue of his third - round win over Mischa Zverev, Federer won his 317th Grand Slam singles match, surpassing Serena Williams' record of 316 match wins and giving him the all - time record for the most Grand Slam singles wins by any player, male or female. The tournament marked the fifth time that Nadal and Federer won the French Open and Wimbledon respectively in the same year.
Document 2: Björn Borg: Björn Borg was born in Stockholm, Sweden, on 6 June 1956, as the only child of Rune (1932-2008) and Margaretha Borg (b. 1934). He grew up in nearby Södertälje. As a child, Borg became fascinated with a golden tennis racket that his father won at a table-tennis tournament. His father gave him the racket, beginning his tennis career.
Document 3: Björn Borg: Borg won his fifth consecutive Wimbledon singles title, the 1980 Wimbledon Men's Singles final, by defeating McEnroe in a five - set match, often cited as the best Wimbledon final ever played -- the only comparable match being the 2008 Federer -- Nadal final. Having lost the opening set to an all - out McEnroe assault, Borg took the next two and had two championship points at 5 -- 4 in the fourth. However, McEnroe averted disaster and went on to level the match in Wimbledon's most memorable 34 - point tiebreaker, which he won 18 -- 16. In the fourth - set tiebreak, McEnroe saved five match points, and Borg six set points, before McEnroe won the set. Björn served first to begin the 5th set and fell behind 15 -- 40. Borg then won 19 straight points on serve in the deciding set and prevailed after 3 hours, 53 minutes. Borg himself commented years later that this was the first time that he was afraid that he would lose, as well as feeling that it was the beginning of the end of his dominance.
Document 4: New Delhi: Indira Gandhi International Airport, situated to the southwest of Delhi, is the main gateway for the city's domestic and international civilian air traffic. In 2012-13, the airport was used by more than 35 million passengers, making it one of the busiest airports in South Asia. Terminal 3, which cost ₹96.8 billion (US$1.4 billion) to construct between 2007 and 2010, handles an additional 37 million passengers annually.
Document 5: Stockholm Arlanda Airport: Stockholm Arlanda Airport (IATA: ARN, ICAO: ESSA), is an international airport located in the Sigtuna Municipality of Sweden, near the town of Märsta, 37 kilometres (23 mi) north of Stockholm and nearly 40 kilometres (25 mi) south - east of Uppsala. The airport is located within Stockholm County and the province of Uppland. It is the largest airport in Sweden and the third - largest airport in the Nordic countries. The airport is the major gateway to international air travel for large parts of Sweden. Arlanda Airport was used by close to 27 million passengers in 2017, with 21.2 million international passengers and 5.5 million domestic.
Document 6: Alfred Nobel: Born in Stockholm, Alfred Nobel was the third son of Immanuel Nobel (1801–1872), an inventor and engineer, and Carolina Andriette (Ahlsell) Nobel (1805–1889). The couple married in 1827 and had eight children. The family was impoverished, and only Alfred and his three brothers survived past childhood. Through his father, Alfred Nobel was a descendant of the Swedish scientist Olaus Rudbeck (1630–1702), and in his turn the boy was interested in engineering, particularly explosives, learning the basic principles from his father at a young age. Alfred Nobel's interest in technology was inherited from his father, an alumnus of Royal Institute of Technology in Stockholm.
Document 7: Martina Hingis: Hingis was born in Košice, Czechoslovakia (now in Slovakia) as Martina Hingisová, to accomplished tennis players Melanie Molitorová and Karol Hingis. Molitorová was a professional tennis player who was once ranked tenth among women in Czechoslovakia, and was determined to develop Hingis into a top player as early as pregnancy. Her father was ranked as high as 19th in the Czechoslovak tennis rankings. Martina Hingis spent her early childhood growing up in the town of Rožnov pod Radhoštěm (now in Czech Republic). Hingis's parents divorced when she was six, and she and her mother defected from Czechoslovakia in 1987 and emigrated to Trübbach (Wartau) in Switzerland when she was seven. Her mother remarried, to a Swiss man, Andreas Zogg, a computer technician. Hingis acquired Swiss citizenship through naturalization.
Document 8: List of Wimbledon gentlemen's singles champions: In the Open Era, since the inclusion of professional tennis players in 1968, Roger Federer (2003 -- 2007, 2009, 2012, 2017) holds the record for most victories in the Gentlemen's Singles Final with eight. Björn Borg (1976 -- 1980) and Roger Federer (2003 -- 2007) co-hold the record for most consecutive victories with five.
Document 9: Börje Carlsson: Börje Gunnar Carlsson (13 June 1933 – 28 July 2017) was a Swedish Olympic sailor in the Star class. He was born in Stockholm Sweden. He competed in the 1952 Summer Olympics together with Bengt Melin, where they finished 7th.
Document 10: 1980 Wimbledon Championships – Men's singles final: The 1980 Wimbledon Men's Singles final was the championship tennis match of the Men's Singles tournament at the 1980 Wimbledon Championships. In the final, Björn Borg defeated John McEnroe 1 -- 6, 7 -- 5, 6 -- 3, 6 -- 7, 8 -- 6 to win the match. It was regarded at the time as the greatest match ever played. It would be another 28 years before the 2008 Wimbledon men's singles final between Roger Federer and Rafael Nadal would rival the match as the greatest ever played.
Document 11: Fredrik Reinfeldt: In 1965, Fredrik Reinfeldt was born in Allmänna BB hospital in Stockholm and was the oldest of three brothers to his parents Bruno (1938-2016) and Birgitta Reinfeldt. At the time of his birth his parents lived in an apartment in Österhaninge, in the south of Stockholm County, but a short time afterwards the family moved to London, where his father worked as a consultant for Shell. Upon returning to Sweden, the family first lived in an apartment in Handen before moving to a terraced house in Bromsten in northwestern Stockholm. The Reinfeldt family was living in Bromsten when Fredrik's younger brothers, Magnus and Henrik, were born in 1969 and 1973. In 1976 the family moved into a single-family home in Täby in northeastern Stockholm County. His mother Birgitta was a leadership and management consultant, and some of her professional skills might have inspired and impressed the young Fredrik.
Document 12: Hartsfield–Jackson Atlanta International Airport: Hartsfield -- Jackson Atlanta International Airport (IATA: ATL, ICAO: KATL, FAA LID: ATL), also known as Atlanta Airport, Hartsfield, or Hartsfield -- Jackson, is an international airport located 7 miles (11 km) south of Atlanta's central business district, in the U.S. state of Georgia. It has been the world's busiest airport by passenger traffic since 1998; and by number of landings and take - offs from 2005 to 2013, losing that title to Chicago - O'Hare in 2014, but regaining it a year later. Hartsfield -- Jackson held its ranking as the world's busiest airport in 2012, both in passengers and number of flights, by accommodating 100 million passengers (more than 260,000 passengers daily) and 950,119 flights. Many of the nearly one million flights are domestic flights from within the United States, where the airport serves as a major hub for travel throughout the southeastern region of the country. The airport has 207 domestic and international gates. ATL covers 4,700 acres (1,902 ha) of land and has five parallel runways.
Document 13: List of Wimbledon gentlemen's singles champions: In the Open Era, since the inclusion of professional tennis players in 1968, Roger Federer (2003 -- 2007, 2009, 2012, 2017) holds the record for the most Gentlemen's Singles titles with eight. Björn Borg (1976 -- 1980) and Roger Federer (2003 -- 2007) share the record for most consecutive victories with five.
Document 14: Arboga Airport: Arboga Airport is an airport serving Arboga in Västmanland County, Sweden. It is a former Swedish Airforce backup base located outside of Arboga used by the Test Unit of SWAF for tests of airborne missiles. Today, the airfield is solely used by the local flying club.
Document 15: Arad International Airport: Arad International Airport is located west of Arad, in western Romania, in the historical region of Crișana. The airport is located only north of Timişoara Airport. Arad International Airport also has a cargo terminal, the largest and most modern in western Romania. It is located 250 km from Budapest and 300 km from Belgrad. It’s located near the border with Hungary, only 30 km from the closest point for crossing the border - Turnu and 20 km away from the closest railway point for crossing the border - Curtici. The airport also serves as the SMURD regional air ambulance base for the 5 western counties that form the region (Arad, Bihor, Timis, Hunedoara & Caras-Severin). SMURD Arad operates 1 Eurocopter EC135 converted for the air ambulance role. Arad Airport is directly connected to the A1 motorway (part of the Pan-European Corridor IV), one of the most important and heavily used motorways in Romania.
ground_truth: Stockholm Arlanda Airport
sub_queries: who won wimbledon's men's singles in 1980 Answer: Björn Borg
What city is Björn Borg from? Answer: Stockholm
what is the main international airport in Stockholm Answer: Stockholm Arlanda Airport