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 had the Algerian War been occurring before the French intensified it in 1956? Passage 1:As he was opposed to violence, Ferhat kept himself distant from the Algerian War, and continued to try to act as an intermediary to the opposing sides. However, after the French intensified the war, in 1956, 18 months after the Algerian War of Independence against French rule began, Ferhat joined the Front de Libération Nationale (FLN). His diplomatic skills were utilized by the FLN, as he was sent on missions sponsored by their ally, President Habib Bourguiba of Tunisia. His visits through Latin America, Europe, and the Middle East were intended to drum up support for their cause. In 1957, he was appointed as the FLN delegate to the United Nations. 1958 saw him attending the North African Conference in Tunis, and in March he communicated an appeal to The Vatican for their assistance in creating peace. After the collapse of the Fourth Republic and the coming to power of Charles de Gaulle, the hopes for an independent Algeria increased. This however did not end the fighting and on September 18 of that year, the Provisional Government of the Algerian Republic (GPRA) was created. His political standing in Algeria and reputation as a moderate nationalist, acceptable to the West, helped him become president of this provisional Algerian nationalist government-in-exile on September 18, 1958 when it was created. The position of President was largely as a figurehead and a diplomat, as most of the power was wielded by the cabinet; however in time a number of Asian and African nations recognized the government. In October 1958 an attempt was made by both Abbas and de Gaulle at ending the war with a meeting and intended cease fire were dashed on the inability of the parties to agree on a neutral location. By September 16, 1959, de Gaulle was softening as he offered self-determination to be decided by a referendum four years after a cease fire. This plan was generally accepted; unfortunately, there were a few substantial sticking points. By 1960, Abbas was becoming frustrated with the West as he lashed out at the United Kingdom and the United States for supplying weaponry to France. With talks breaking down in June 1960, Abbas turned to the east and by September was visiting with Communist China, and the Soviet Union, where he was welcomed warmly. Abbas reassured the West by stating that his new alliances were opportunism, when he stated that
 Passage 2:In 1998 the Colts, for the 4th time in 15 years, held the 1st overall pick in the draft and for the 3rd time in 15 years selected a quarterback – this time University of Tennessee's Peyton Manning. Manning started the first game of his rookie season and started every single Colts game since until the start of the 2011 season, when a recurring neck injury sidelined him. Despite a difficult rookie season, where he threw a league high 28 interceptions, Manning and the Colts responded by finishing 13–3 in 1999. The 10 game turnaround from the previous year set an NFL record. Even with this turnaround, the Colts lost in the playoffs. The following years would be marked by a near constant pattern. The Colts and Manning successes in the regular season were matched only by their failures in the post season. Manning was named to the Pro Bowl in 1999, 2000, 2002, 2003 and 2004, as well as winning the NFL MVP award in both 2003 and 2004. In 2004 Manning set a then NFL record when he threw 49 touchdowns in a single season. In spite of this the team failed in the playoffs, including early round exits in 1999, 2000, 2002 and 2005. In both 2003 and 2004 the Colts would lose to eventual Super Bowl winning New England Patriots in the AFC Championship Game and the Divisional Round respectively. In 2006 the Colts and Manning were finally able to beat the Patriots and their quarterback Tom Brady in the AFC Championship Game on their way to a victory in Super Bowl XLI against the Chicago Bears. Manning was named the Super Bowl MVP. The Colts and Manning would continue to have success, with Manning winning two further MVP awards in 2008 and 2009. In 2009 the Colts would return to the Super Bowl where they would lose to the New Orleans Saints.
 Passage 3:After attending school in Altkirch and Dijon, Hommaire graduated as an engineer at the École des Mines in Saint-Étienne in 1833. There he met Adèle Hériot whom he married in 1834. In October 1835, he went Turkey where he coordinated the construction of a suspension bridge in Constantinople and a lighthouse on the Black Sea coast. In 1838, he arrived in southern Russia where he performed ethnographical research and geographical surveys. After he discovered coal resources along the Dnieper River, Czar Nicholas I awarded him the St Vladimir Cross. In 1842, while working on mining and road-building projects in Moldavia, he fell ill and returned to France. The following year he became a member of the Société de Géographie and the Société géologique and published a number of scientific papers. In 1844 the Société de Géographie awarded him their Gold Medal .

Solution:
1