Given the task definition, example input & output, solve the new input case.
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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Output: 1
The question refers to the 704th unit and task about war which is decribed by Passage 1.

New input case for you: Question: What type of weapon did von Manteuffel and Karl Twesten use in their duel? Passage 1:Sabita Devi (1914–1965) was a Hindi film actress in Indian cinema. She is stated to be one of the "prominent" leading ladies of the "pioneering era" of Indian cinema along with Mehtab, Bibbo, Durga Khote, Gohar, Devika Rani and Seeta Devi. A Jewess by birth, she changed her name to find acceptability in Hindi cinema like the other Anglo-Indian and Jewish actresses of her time, Sulochana (Ruby Myers), Seeta Devi (Renee Smith), Madhuri (Beryl Claessen), and Manorama (Erin Daniels). After initially working with British Dominion Films Ltd., Calcutta, she shifted to Bombay and performed mainly in films produced by Sagar Movietone with her co-star in most films being Motilal. Some of the popular films with Motilal were Dr. Madhurika (1935) and Kulvadhu (1937) directed by Sarvottam Badami. Their first film together was Shaher Ka Jadoo (1934), which was also Motilal's debut film, and then Lagna Bandhan (1936) both directed by Kaliprasad Ghosh. She acted in Silver King (1935) with Motilal. It was an action film directed by C. M. Luhar, which became a "huge success".
 Passage 2:Promoted lieutenant-colonel in 1852, and colonel (and commanding officer of the 5th Uhlans) in 1853, Manteuffel was sent on important diplomatic missions to Vienna and St Petersburg. In 1857 he was promoted to major-general and chief of the Prussian Military Cabinet (the King's military advisers). He gave strong support to the Prince Regent's plans for the reorganization of the army. In 1861 he was violently attacked in a pamphlet by Karl Twesten (1820–1870), a Liberal leader, whom he had wounded in a duel, for which Manteuffel insisted on being briefly imprisoned. He was promoted to lieutenant-general for the coronation of William I on 18 October 1861 and saw active service in that rank in the Danish War of 1864, then at its conclusion was appointed civil and military governor of Schleswig. In the Austrian War of 1866 he first occupied Holstein and afterwards commanded a division under Vogel von Falkenstein in the Hanoverian campaign, then in July succeeded Vogel in command of the Army of the Main.
 Passage 3:Page attended the Okemos Montessori School (now called Montessori Radmoor) in Okemos, Michigan, from 1975 to 1979, and graduated from East Lansing High School in 1991. He attended Interlochen Center for the Arts as a saxophonist for two summers while in high school. Page holds a Bachelor of Science in computer engineering from the University of Michigan, with honors and a Master of Science in computer science from Stanford University. While at the University of Michigan, Page created an inkjet printer made of Lego bricks (literally a line plotter), after he thought it possible to print large posters cheaply with the use of inkjet cartridges—Page reverse-engineered the ink cartridge, and built all of the electronics and mechanics to drive it. Page served as the president of the Beta Epsilon chapter of the Eta Kappa Nu fraternity, and was a member of the 1993 "Maize & Blue" University of Michigan Solar Car team. As an undergraduate at the University of Michigan, he proposed that the school replace its bus system with a personal rapid transit system, which is essentially a driverless monorail with separate cars for every passenger. He also developed a business plan for a company that would use software to build a music synthesizer during this time.

Output:
2