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 many years were there between Henry II's declaration of war and the Peace of Passau? Passage 1:Askey was a youth-team player at Port Vale, the club where his father, Colin Askey, made over 200 appearances in the 1950s. Despite winning the club's Young Player of the Year award in 1982, he was never handed a first-team debut at Vale Park. After leaving the club he spent a year working as a laborer for a pottery firm in Tunstall, before entering the insurance industry. He first joined Macclesfield Town from Milton United in 1984, alongside his brother Bob, to fill a gap when the club were short of players. He scored on his debut during the 1984–85 season, coming on as a substitute away at Morecambe on 29 December. He went on to score one goal in three appearances as the "Silkmen" finished as runners-up to Stafford Rangers in the Northern Premier League. He featured 13 times in the 1985–86 campaign, before scoring seven goals in 17 appearances as Macclesfield won the Northern Premier League title in 1986–87. Macclesfield went on to secure a treble after winning the Northern Premier League President's Cup and beating Burton Albion 2–0 in the Northern Premier League Challenge Cup final at Maine Road.
 Passage 2:Thomas Bonham had been admitted to St John's College, Cambridge, in 1581. Earning a bachelor's degree in 1584, he completed a master's by 1588 and studied for a medical doctorate at Cambridge, which was later granted by the University of Oxford. By 1602, he had completed his studies and moved to London, where he practised medicine and associated himself with the Barber-Surgeons' Company, campaigning for it to be allowed to authorise medical practitioners in a similar way to the College of Physicians. Apparently giving up after a failed petition to Parliament in 1605, Bonham petitioned to join the college on 6 December 1605 but was rejected and told to return after further study. Returning on 14 April 1606, he was again told he could not join and was fined £5 () and threatened with imprisonment for continuing to practise. Bonham still kept working as a doctor; on 3 October it was announced he was to be arrested and fined £10. Bonham again appeared before the college, now with a lawyer, on 7 November. He announced that he would continue to practise without seeking the college's permission, which he claimed had no power over graduates of Oxford or Cambridge. He was then imprisoned (some say at Fleet Prison, and some say at Newgate Prison) for contempt, but his lawyer had a writ of habeas corpus, issued by the Court of Common Pleas, which freed him on 13 November.
 Passage 3:Dissatisfied with the Interim decreed by Charles V at the 1548 Diet of Augsburg, the insurgents were full of resolution to defend Protestantism and–not least–their autonomy against the Imperial central authority. They agreed to establish contacts with the Catholic French king Henry II, disregarding his oppression of the Protestant Huguenots. In autumn Henry declared war against Charles V and prepared to march against the Empire up to the Rhine River. On 15 January 1552, he signed the Treaty of Chambord with Maurice of Saxony and his Protestant allies, whereby the French conquests were legitimised ahead of time. The princes acknowledged the king's lordship as "Vicar of the Empire" over the Imperial cities of Metz, Toul and Verdun, as well as Cambrai "and other towns of the Empire that do not speak German". The insurgents in turn received subsidies and military assistance from the French, their troops moved into the Habsburg hereditary lands and laid siege to the emperor at Innsbruck, while his brother Ferdinand I entered into negotiations that led to the revocation of the Augsburg Interim by the 1552 Peace of Passau.

Solution:
3