You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
In this task, you're given a question, along with three passages, 1, 2, and 3. Your job is to determine which passage can be used to answer the question by searching for further information using terms from the passage. Indicate your choice as 1, 2, or 3.

Question: When did the operation during which the 704th dropped supplies to allied troops near Nijmegen begin? Passage 1: The group was occasionally diverted from strategic missions to carry out air support and interdiction missions. It supported Operation Overlord, the invasion of Normandy by attacking transportation targets, including bridges, along with airfields and strong points in France. On D Day, the squadron and the rest of the 446th Group led the first heavy bomber mission of the day. The 446th aided ground forces at Caen and Saint-Lô during July by hitting bridges, gun batteries, and enemy troops. During Operation Market Garden, the attempt to seize a bridgehead across the Rhine in the Netherlands, the 704th dropped supplies to allied troops near Nijmegen. It struck lines of communications during the Battle of the Bulge. During Operation Varsity in March 1945, it supplied ground and airborne troops near Wesel. The squadron flew its last combat mission on 25 April 1945 against Salzburg, Austria. The group had flown 273 missions and had lost 58 aircraft during the war,
. Passage 2: John Ford (1894–1973) was an American film director whose career spanned from 1913 to 1971. During this time he directed more than 140 films. Born in Maine, Ford entered the filmmaking industry shortly after graduating from high school with the help of his older brother, Francis Ford, who had established himself as a leading man and director for Universal Studios. After working as an actor, assistant director, stuntman, and prop man – often for his brother – Universal gave Ford the opportunity to direct in 1917. Initially working in short films, he quickly moved into features, largely with Harry Carey as his star. In 1920 Ford left Universal and began working for the Fox Film Corporation. During the next ten years he directed more than 30 films, including the westerns The Iron Horse (1924) and 3 Bad Men (1926), both starring George O'Brien, the war drama Four Sons and the Irish romantic drama Hangman's House (both 1928 and both starring Victor McLaglen). In the same year of these last two films, Ford directed his first all-talking film, the short Napoleon's Barber. The following year he directed his first all-talking feature, The Black Watch.
. Passage 3: Since the late 1970s, the central part of NYU is its Washington Square campus in the heart of Greenwich Village. Despite being public property, and expanding the Fifth Avenue axis into Washington Square Park, the Washington Square Arch is the unofficial symbol of NYU. Until 2008, NYU's commencement ceremony was held in Washington Square Park. However, due to space constraints, ceremonies are now held at the Yankee Stadium. Important facilities at Washington Square are the Elmer Holmes Bobst Library, designed by Philip Johnson and Richard Foster, who also designed several other structures, such as Tisch Hall, Meyer Hall, and the Hagop Kevorkian Center. When designing these buildings Johnson and Foster also set up a master plan for a complete redesign of the NYU Washington Square campus. However, it was never implemented. Other historic buildings include the Silver Center (formerly known as "Main building"); the Brown Building of Science; Judson Hall, which houses the King Juan Carlos I of Spain Center; Vanderbilt Hall, the historic townhouse row on Washington Square North; The Grey Art Gallery at 100 Washington Square East, housing the New York University art collection and featuring museum quality exhibitions; the Kaufman Management Center; and the Torch Club – the NYU dining and club facility for alumni, faculty, and administrators. Just a block south of Washington Square is NYU's Washington Square Village, housing graduate students and junior and senior faculty residences in the Silver Towers, designed by I. M. Pei, where an enlargement of Picasso's sculpture Bust of Sylvette (1934) is displayed.
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Solution: 1
Why? The question refers to the 704th unit and task about war which is decribed by Passage 1.

New input: Question: How long did the operation last in which Post was stationed at an air base in Qatar? Passage 1:Since the 1990s, United States college soccer has played a significant role in the development of New Zealand players. This influence began when former Scotland international Bobby Clark returned to the U.S. after his 1994–96 stint as New Zealand head coach to take the head coaching job at Stanford University (he now holds the same position at Notre Dame). Clark began recruiting in New Zealand, and former New Zealand national players Ryan Nelsen and Simon Elliott played for him at Stanford. The trend that Clark started has continued to the present; more than two dozen New Zealanders are now playing for NCAA Division I men's programs in the U.S. A common next step in these players' career paths is a stint in Major League Soccer; ESPN soccernet journalist Brent Latham speculated in a March 2010 story that New Zealand's 2010 FIFA World Cup squad could have more MLS players than the U.S. squad. However, Latham's speculation did not prove true, as only one MLS player made the New Zealand squad for the World Cup. New Zealand formerly competed against Australia for top honours in the OFC. However, after Australia left to join the AFC in 2006, New Zealand were left as the only seeded team in the OFC. New Zealand qualified for the 2010 FIFA World Cup though exited the competition after the first round despite being the only team not to lose a game during the tournament. The tournament also featured one of New Zealand's most notable results, a 1–1 draw with the then world champions Italy. New Zealand drew their other two pool games with Slovakia and Paraguay and ultimately finished above Italy, who placed last, in the group. New Zealand drew all three games and finished third in their group. New Zealand were also the only undefeated team in the entire tournament thanks to Spain's defeat to Switzerland.
 Passage 2:From July 1996 to May 1997, Post was a student at the Army Command and General Staff College at Fort Leavenworth, Kansas. He was then posted to The Pentagon in Washington, DC, as Operations Officer, Western Hemisphere, Operations Directorate (J3) in June 1997. He graduated from the Armed Forces Staff College in 1998. In July and August 1999, completed the F-16 transition course at Luke Air Force Base in Arizona. He was an F-16 Evaluation Pilot with the 77th Fighter Squadron, Operations Officer with the 79th Fighter Squadron, and then commander of the 55th Fighter Squadron, all at Shaw Air Force Base in South Carolina. From July 2002 to June 2003, he was a student at the Air War College at Maxwell Air Force Base, earning a Master of Strategic Studies degree. He was Senior Deputy Commander of the 56th Operations Group at Luke Air Force Base from July 2003 to March 2004, and Vice Commander of the 388th Fighter Wing at Hill Air Force Base in Utah from April 2004 to July 2006. He was in charge of Standardization and Evaluation with the Twelfth Air Force at Davis-Monthan Air Force Base in Arizona from August 2006 to January 2007. He commanded the 20th Fighter Wing at Shaw Air Force Base from February 2007 to October 2008, and then the 609th Air and Space Operations Center at Al Udeid Air Base in Qatar in support of Operation Iraqi Freedom. He flew 280 combat sorties. From August 2009 until January 2010, he was Director of Plans and Requirements at Headquarters, Twelfth Air Force. From February 2010 to August 2012, he was commander of the 354th Fighter Wing at Eielson Air Force Base in Alaska.
 Passage 3:Danish singer Oh Land has released five studio albums, two extended plays (EPs), 20 singles (including two as a featured artist), five promotional singles, and 13 music videos. When signed to Fake Diamond Records, Oh Land released her debut album, Fauna, in November 2008. Following a performance at the 2009 SXSW event, she met a representative from Epic Records and signed with the label. She released her major-label debut single "Sun of a Gun" in October 2010, which charted in five countries and served as the lead single to her 2011 self-titled studio album. Oh Land peaked at number five in Denmark and also entered the Billboard 200 in the United States. It would go on to be certified Platinum for selling over 20,000 copies in the former country. The album spawned four additional singles, including "Wolf & I", "Voodoo", "White Nights", and "Speak Out Now"; the latter two songs both within the top twenty in Oh Land's native Denmark and were also certified Gold by IFPI Denmark.

Solution:
2