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.
Example: 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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Example solution: 1
Example explanation: The question refers to the 704th unit and task about war which is decribed by Passage 1.

Problem: Question: Was Olivir's sister still alive when the Battle of Hafrsfjord took place? Passage 1:Olvir Hnufa or Ölvir hnúfa was a Norwegian commander in a clan and poet of the late ninth and early tenth centuries, known from, among other sources, Egil's Saga, Skaldatal and the Prose Edda. Olvir was the son of the viking Berle-Kari and brother-in-law of Kveldulf Bjalfason, who married Olvir's sister Salbjorg Karadottir; he was thus uncle to Skallagrim and Thorolf Kveldulfsson and great uncle to the famous poet Egil Skallagrimsson. Olvir also had a brother named Eyvind Lambi. Olvir was a prominent member of the court of King Harald Fairhair, who united Norway under his rule in the late ninth or early tenth century. Among other famous poets, he served as one of King Harald's court poets. He also served as a warrior in Harald's retinue, and fought at the pivotal Battle of Hafrsfjord on the king's flagship. He is best known for his involvement in the conflict between Harald and Olvir's kinsman Thorolf Kveldulfsson, which ended with the latter's death. Only a few fragments of Olvir's poetry survive.
 Passage 2:Specific attractions include the world's only complete collection of Vanwall cars, a near-complete collection of McLaren Formula One cars from the team's inception to the early 2000s, and extensive collections of Williams and BRM cars (including examples of both notorious BRM V16-powered machines as well as the H16-powered BRM P83). The collection also has examples of four different four-wheel drive Formula One cars, including an unraced Cosworth car. Another star exhibit is the Lotus 18 with which Stirling Moss won the 1961 Monaco Grand Prix, along with Jim Clark's World Championship-winning Lotus 25. Noticeable, however, is the distinct lack of Ferrari vehicles, 3 in all, but fine examples nonetheless. First being a Ferrari 312 driven by Chris Amon, second a 312B and thirdly, a Ferrari F2000 (The particular chassis driven to victory in the 2000 Canadian Grand Prix, one of nine victories for Michael Schumacher in his maiden championship winning series with Ferrari), conversely, the establishment houses the Jordan 191 in which he made his formula 1 debut in 1991. The 1998 Jordan 198, the most successful in Jordan's history, (the chassis being the one Damon Hill drove to victory in a 1-2 with team mate Ralf Schumacher at the 1998 Belgian Grand Prix at Spa Francorchamps) also figures. Another interesting exhibit is an Auto Union, built from pre-war plans following the factory's destruction by Allied bombing during World War II. Wheatcroft has also supplemented the racing car collection with some additional notable cars, including a replica of the personal Bugatti Royale of Ettore Bugatti.
 Passage 3:Before Trial by Jury, W. S. Gilbert and Arthur Sullivan had collaborated on one previous opera, Thespis; or, The Gods Grown Old, in 1871. Although reasonably successful, it was a Christmas entertainment, and such works were not expected to endure. Between Thespis and Trial by Jury, Gilbert and Sullivan did not collaborate on any further operas, and each man separately produced works that further built his reputation in his own field. Gilbert wrote several short stories, edited the second volume of his comic Bab Ballads, and created a dozen theatrical works, including Happy Arcadia in 1872; The Wicked World, The Happy Land and The Realm of Joy in 1873; Charity, Topsyturveydom and Sweethearts in 1874. At the same time, Sullivan wrote various pieces of religious music, including the Festival Te Deum (1872) and an oratorio, The Light of the World (1873), and edited Church Hymns, with Tunes (1874), which included 45 of his own hymns and arrangements. Two of his most famous hymn tunes from this period are settings of "Onward, Christian Soldiers" and "Nearer, my God, to Thee" (both in 1872). He also wrote a suite of incidental music to The Merry Wives of Windsor (1874) and many parlour ballads and other songs, including three in 1874–75 with words by Gilbert: "The Distant Shore", "Sweethearts" (inspired by Gilbert's play) and "The Love that Loves Me Not".
Solution: 1