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: What is the population of the town that VT 15 enters when it becomes known as College Parkway. Passage 1:VT 15 begins as East Allen Street in the center of Winooski at the rotary-style intersection with Main Street (US 2 and US 7). It proceeds east for to a partial interchange with I-89 (at Exit 15). Right after the I-89 junction, VT 15 enters the town of Colchester, with the road becoming known as College Parkway. It runs for only in Colchester, passing by the Fort Ethan Allen military installation before entering the village of Essex Junction in the town of Essex. In Essex Junction, the road is known as Pearl Street and continues for about two miles (3 km) to the "Five Corners" intersection with VT 2A and VT 117 at the village center, near the Essex Junction-Burlington railroad station. It turns left onto Main Street at the village center and continues northeast out of the village for to a junction with the VT 289 expressway (at Exit 9). From there it continues east through Essex Center along Center Road and Jericho Road as it heads into the town of Jericho, soon entering the village of Jericho. As VT 15 continues past the village, it turns northward to enter the town of Underhill. It runs for about eight miles (13 km) in a northerly direction through mostly rural areas in the towns of Underhill and Westford before finally entering the town of Cambridge.
 Passage 2:On 15 February 1946, Laskov immigrated to Brno, Czechoslovakia, where he studied medicine at the Masaryk University and played for SK Židenice, the modern 1. FC Brno. In 1947, he moved to Bratislava, where he married a Slovak beautician and was granted Czechoslovak citizenship. In Bratislava, he played for ŠK Slovan Bratislava between 1947 and 1952, winning the Czechoslovak First League in 1949, 1950 and 1951. In Czechoslovakia, he has also played for FK Inter Bratislava (then Cervena Hviezda) and TTS Trenčín players, until 1960. In the Czechoslovak Championship, he played a total of 169 games, of which 98 (with 48 league goals) for Slovan; he also featured in 3 games for the Czechoslovakia national football team. He was awarded several fair play prizes in Czechoslovakia. Later on, he worked as a manager, managing FK Inter Bratislava, FC Spartak Trnava and Trenčín. He also served as a professional physician specialized in otolaryngology and was an active member of the Bulgarian association in Slovakia.
 Passage 3:Keity Souza Santos is an immunologist working at the allergy and immunology department of the University of São Paulo's school of medicine. Santos stated that she was the first person in her family to express interest in science as a career. She was inspired to become a biologist by the story of Dolly the sheep, the first mammal clone. She received her Bachelor's Degree in Biological Sciences from the University of São Paulo in 2003, and her doctorate in Allergy and Immunopathology in 2008 from the same institution. During her doctorate, she worked to find an anti-venom for the sting of Apis mellifera, which is also called the "Africanized honeybee." She did post-doctoral work in Salzburg, in Austria, and at Cornell University in Ithaca, in the USA. Her later work has been on identifying venom proteins in various insect stings, and in some cases, identifying the damage that they cause to tissues in the human body.

Solution:
1