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 input: 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 output: 1
Example explanation: The question refers to the 704th unit and task about war which is decribed by Passage 1.
Q: Question: How far away is the Delaware Canal from the Lehigh Canal? Passage 1:Sited at the confluence of the rapidly flowing Lehigh River's waters with the more stately waters of the deeper wider Delaware, Easton became a major commercial center during the canal and railroad periods of the 19th century, when it would become a transportation hub for the eastern steel industry. The Delaware Canal, was quickly built soon after the lower Lehigh Canal (1818) became effective in regularly and reliably delivering much needed anthracite coal, into more settled lands along the rivers. And eventually the Morris would also serve to connect the rapidly developing Coal Regions to the north and west, to the fuel starved iron works to the west, the commercial port of Philadelphia to the south, and to the many home owners seeking fuel for heat within Pennsylvania, Maryland, New Jersey, Delaware and New York. Seeing other ways of exploiting the new fuel source, other entrepreneurs quickly moved to connect across the Delaware River reaching into the New York City area to the east via a connection with the Morris Canal in Phillipsburg, New Jersey, so the town became a canal nexus or hub from which the Coal from Mauch Chunk reached the world. The early railroads were often built to parallel and speed shipping along transportation corridors, and by the late 1860s the Lehigh and Susquehanna Railroad (LH&S) and Lehigh Valley Railroad (LVRR) were built to augment the bulk traffic through the canals and provide lucrative passenger travel services. The LVRR, known as 'the Black Diamond Line' would boast the twice daily "Black Diamond Express" daily passenger trains to and from New York City and Buffalo, New York via Easton. The Central Railroad of New Jersey (CNJ), would lease and operate the LH&S tracks from the 1870s until the Conrail consolidations absorbed both the Central Railroad of New Jersey and Lehigh Valley Railroad in 1966. Today, the Lehigh Valley Railroad's main line is the only major rail line that goes through Easton and is now known as the Lehigh Line; the Lehigh Line was bought by the Norfolk Southern Railway in 1999.
 Passage 2:With its 2,000 religious places – 1,600 Buddhist temples and 400 Shinto shrines, as well as palaces, gardens and architecture intact – it is one of the best preserved cities in Japan. Among the most famous temples in Japan are Kiyomizu-dera, a magnificent wooden temple supported by pillars off the slope of a mountain; Kinkaku-ji, the Temple of the Golden Pavilion; Ginkaku-ji, the Temple of the Silver Pavilion; and Ryōan-ji, famous for its rock garden. The Heian Jingū is a Shinto shrine, built in 1895, celebrating the Imperial family and commemorating the first and last emperors to reside in Kyoto. Three special sites have connections to the imperial family: the Kyoto Gyoen area including the Kyoto Imperial Palace and Sentō Imperial Palace, homes of the Emperors of Japan for many centuries; Katsura Imperial Villa, one of the nation's finest architectural treasures; and Shugaku-in Imperial Villa, one of its best Japanese gardens. In addition, the temple of Sennyu-ji houses the tombs of the emperors from Shijō to Kōmei.
 Passage 3:Denver had long been a hotbed of Denver Bears/Zephyrs minor league baseball and many in the area desired a Major League team. Following the Pittsburgh drug trials, an unsuccessful attempt was made to purchase the Pittsburgh Pirates and relocate them. However, in 1991, as part of Major League Baseball's two-team expansion (along with the Florida (now Miami) Marlins), an ownership group representing Denver led by John Antonucci and Michael I. Monus was granted a franchise; they took the name "Rockies" due to Denver's proximity to the Rocky Mountains, which is reflected in their logo; the name was previously used by the city's first NHL team (who are now the New Jersey Devils). Monus and Antonucci were forced to drop out in 1992 after Monus' reputation was ruined by an accounting scandal. Trucking magnate Jerry McMorris stepped in at the 11th hour to save the franchise, allowing the team to begin play in 1993. The Rockies shared Mile High Stadium (which had originally been built for the Bears) with the National Football League (NFL)'s Denver Broncos for their first two seasons while Coors Field was constructed. It was completed for the 1995 Major League Baseball season.

A:
1