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 river watershed is larger? Passage 1:The origins of the parish probably date back to the time of the Merovingian dynasty, as evidenced by the patronage of Saint Quintin, which was later almost forgotten. The second patron saint of the church is Saint Blaise, of whom St. Quintin had a head reliquary. St. Quintin was first mentioned in a document in 774. Later, the first inner-city parish cemetery was located near the church (first mention in sources around 1100). It is regarded as certain that St. Quintin already existed in the 8th century; in the 7th and 8th centuries an extensive church building activity had begun in Mainz. Today's construction began around 1288 and was completed around 1330 in Gothic art. As early as 1348, this building suffered severe damage when a fire, set during a plague pogrom, spread from the nearby Jewish quarter to the church, which destroyed the windows of the nave and melted down the city bell in the tower. Starting 1425 the damage could be repaired. The chapel extension south of the choir with the old sacristy (today's storeroom) was built as well. During the Thirty Years' War the church served as a barracks for the Swedish troops. At times evangelical church services were held there. In 1721 the church was completely redesigned baroque and re-equipped. In 1813 the church served again as barracks, this time for the French troops after the Battle of Leipzig. The church underwent a fundamental renovation and repair from 1869 to 1888, after it had been rescued by master builder Eduard Kreyßig from imminent demolition due to dilapidation. The church was furnished in neo-Gothic style. Only the neo-Gothic choir barriers on both sides of the nave have survived from this phase. During the Second World War, the church was severely damaged during the air raids on Mainz in 1942, but the walls were preserved. The valuable arm relic of Saint Quintin was burnt, as were other precious pieces of equipment. The reconstruction and renovation began immediately. A provisional roof was put on during the war and already in 1948 the church could be used again. After the war, it served as a church room for the French garrison. A new relic of Quintin could be worshipped again since 4 November 1950 at the mediation of the bishop of Soisson Pierre Auguste Marie Joseph Douillard. At the end of the 1960s, work was carried out on the exterior and on the bell tower, whereby the church building was given its medieval colouring again in 1970 on the basis of original findings. However, the tower continued to have an provisional roof. It was not until 1995 that the Renaissance tower helmet, reconstructed by hand true to the original, was reattached.
 Passage 2:According to the United States Census Bureau, the city has a total area of , of which is land and is water, comprising 1.35% of the city. Berlin is situated at the confluence of the Androscoggin and Dead rivers. The Mahoosuc Range is to the southeast. Jericho Mountain State Park, created from a city park and from private land in 2005, is west of the city center and features a reservoir created in the 1970s and a network of ATV trails. The city's highest point is Mount Weeks, at above sea level. A prominent feature in the landscape of Berlin is Mount Forist, rising over the west side of the city. Approximately half of Berlin lies within the Connecticut River watershed, and half lies in the Androscoggin River watershed.
 Passage 3:On November 9, 1948, Flannelly was appointed Auxiliary bishop of New York and Titular Bishop of Metelis by Pope Pius XII. After receiving news of his appointment, he stated, "I am delighted, of course, that I am going to be a successor of the Apostles, and I am humbly grateful to God." He received his episcopal consecration on the following December 16 from Cardinal Francis Spellman, with Bishops Joseph Patrick Donahue and Stephen Joseph Donahue serving as co-consecrators, at St. Patrick's Cathedral. At his consecration, he wore the same vestments worn by Cardinal Spellman and Pope Pius XII at their own consecrations. He was also given the episcopal ring of Cardinal Patrick Joseph Hayes and the pectoral cross of Archbishop John Hughes. He selected as his episcopal motto: "Pro Hominibus ad Deum," which, freely translated, means, "Ordained for men in the things that appertain to God" ().

Solution:
2