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: Which eight years did Dayton appear in the NCAA tournament under Donoher? Passage 1:Tom Blackburn became ill with terminal lung cancer during the 1963–64 season. Don Donoher, a former Dayton player and assistant coach took over for the final three games of the 1963–64 season. Donoher, with Assistant Coach Chuck Grigsby, guided the Flyers to the NCAA Sweet Sixteen in his first two years as coach; they then led the Flyers to the 1967 NCAA Championship game by beating Western Kentucky, #8 ranked Tennessee, Virginia Tech, and #4 ranked North Carolina, before falling to #1 ranked and eventual champion UCLA 79–64 in the final. Donoher's 1967–68 squad began the season ranked #6 in the country in the AP Poll, but faltered in early competition and finished with a 17–9 record, missing the NCAA tournament. Nonetheless, Donoher's Flyers made a successful run through the 1968 NIT field, besting Kansas in the championship to win their second NIT crown. The Flyers would again face UCLA in a pivotal NCAA tournament game in 1974. The 20–7 Flyers squared off against the Bruins in the West Regional Sweet Sixteen and took the Bill Walton-led seven consecutive NCAA Champions to three overtimes before eventually falling 111–100. Donoher would again lead the Flyers to NCAA success in 1984 as Roosevelt Chapman led Flyers bested LSU, #7 ranked Oklahoma, and #15 ranked Washington before falling in the Elite Eight to eventual national champion Georgetown. The 24-season Donoher era was arguably Dayton's finest, producing eight NCAA tournament invitations, and eight NIT invitations. Following the success of the 1967 National Runner Up squad, the University began planning for a new 13,500 seat facility to house the nationally prominent Flyers. The UD Arena became the Flyer's home court at the start of the 1969–70 season.
 Passage 2:Jan Ruhtenberg (a.k.a. Alexander Gustaf Jan Ruhtenberg or Alexander Gustav Jan Ruhtenberg, born Alexander Gustaf Rutencrantz von Ruhtenberg, 28 February 1896 – died, December 1975) was an architect who "made significant contributions in introducing modern architecture to the United States as a teacher and a modern architect". Ruhtenberg was involved in the Bauhaus movement in Germany, studying under Mies van der Rohe and worked with Philip Johnson. In The International Style: Architecture Since 1922 Johnson acknowledges Ruhtenberg as one of two “kind friends” who have read and criticized draft texts. Johnson and fellow author Henry-Russell Hitchcock included Ruhtenberg’s 1930 Berlin apartment house interior among their illustrations of modern design. In his biography of Philip Johnson, architectural historian Franz Schulze refers to Ruhtenberg as Johnson's new friend during the latter's travels in Germany in 1929. The two visited the Bauhaus in Dessau together. At the time Ruhtenberg was a public relations aide to designer Bruno Paul. Johnson, working with Henry-Russell Hitchcock, was gathering material for The International Style: Architecture Since 1922. Ruhtenberg was traveling with them. Schulze cites Johnson's letter of 17 September 1930 to J. J. P. Oud, a Dutch modernist architect, in which Johnson called Ruhtenberg his best friend, describing him as a beginning architecture student. Three years later in another letter to Oud, Johnson tells him that he is building a house in Manhattan with his friend Jan Ruhtenberg. He was active in many areas of country such as New York City with both his architectural skills (the renovation of 57 East 93rd Street that was reviewed by Architectural Forum in 1937); He is "credited" with the interior design of Nelson Rockefeller's Penthouse at 810 Fifth Avenue (62nd Street) by the New York Times; and his opinions on the progressive housing movement which were recorded for the Library of Congress. 
 Passage 3:The invasion of the Iberian Peninsula in 1807-08 by Napoleon Bonaparte's forces proved to be critical for the independence struggle in South America, during which the local elites of Upper Peru remained mostly loyal to Spain, supporting Junta Central, a government which ruled in the name of the overthrown king Ferdinand VII of Spain. A number of radical criollos in 1808-10 began a local power struggle. Pedro Domingo Murillo proclaimed an independent state in Upper Peru in the name of king Ferdinand VII. During the following seven years Upper Peru became the battleground between the armed forces of independent United Provinces of the Rio de la Plata and royalist troops from Viceroyalty of Peru.

Solution:
1