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 other teammates had Roberts had before partnering with Lawson? Passage 1:When the Northern Yuan Chahar Borjigin Mongol Khan Ejei Khan surrendered to the Qing, he was given the title of Prince of the first rank (Qin Wang, 親王), a title he held until his death in 1661, and inherited by his younger brother Abunai (阿布奈). Abunai openly showed his discontent toward the Manchu and he was put under house arrest in Shenyang by the Kangxi Emperor in 1669 and his imperial title / rank was given to his son Borni (布尔尼) in September of that same year. Borni (布尔尼) was careful to not show any sign of disrespecting the Qing Dynasty, but finally in 1675, he suddenly rebelled along with his younger brother Lubuzung (罗布藏), capitalizing on the Revolt of the Three Feudatories. However, they had made a serious miscalculation in wrongfully believing that other Mongols would join them, when in reality only three thousand Chahar (Mongols) joined the rebellion. It only took a single decisive battle on April 20, 1675 to defeat Abunai (阿布奈) and his followers, who were all killed subsequently in their retreat. The Qing Dynasty's punishment of the rebellion was very harsh: all royal males of Chahar (Mongols) were executed, including infants born to Qing / Manchu princesses, and all royal females of Chahar (Mongols) were sold to slavery except these Qing / Manchu princesses.
 Passage 2:Lawson accepted an offer from Yamaha to contest the 500cc World Championship as Kenny Roberts' teammate for the 1983 season. Lawson spent the 1983 season learning the ropes of the Grand Prix circuit. In 1984, Lawson began winning regularly and won the 1984 World Championship. It would mark the first of four world titles Lawson would go on to win. In 1985, he won the prestigious Imola 200 pre-season race. After winning two more titles for Yamaha in 1986 and 1988, Lawson shocked the racing world by announcing he would be leaving Yamaha to sign with their arch-rivals Rothmans Honda as teammate to his own archrival, Australia's 1987 World Champion Wayne Gardner. By switching teams, Lawson also fulfilled his desire to work with Erv Kanemoto. After Gardner crashed and broke his leg during the third round at Laguna Seca, Lawson went on to win the 1989 title for Honda, becoming the first rider to win back-to-back championships on machines from different manufacturers. By winning with both Yamaha and Honda, Lawson silenced his critics who believed he would not be as successful away from the factory Marlboro Yamaha team.
 Passage 3:In 1967 at the start of the governorship of Ronald Reagan one of Reagan's first actions was to fire Nelson from her state government post at the Consumer Counsel. Nelson said that this was because she was disliked by Reagan's supporters, including the California Grocer's Association and the California Manufacturers' Association. After this she became elected president of the Consumer Federation of California. She served also on the board of Consumers Union, and would be re-elected for a total of five three-year terms on that board. From 1969-1979 served as a professor of economics at the University of Wisconsin. During this time she also served as a public governor for the American Stock Exchange. In 1968 after 15 years of work her lobbying had contributed to the passing of the Truth in Lending Act. She served two terms as president of the Consumer Federation of America from 1972-1982. She was the consumer consultant to the Office of Technology Assessment and the National Academy of Science. She petitioned the National Academy of Science to recognize the research showing saccharin as a cancer-causing agent and fluorocarbons as causing ozone depletion. In 1978 President Jimmy Carter appointed Nelson to the President's Export Council. Also in 1978 the American Council on Consumer Interests recognized her as a "Distinguished Fellow". In 1979 after the 1977 death of her husband Nelson returned to Mill Valley, California. There she was appointed to the Consumer Advisory Council of the Federal Reserve Board of Governors, the consumer advisory panel for Pacific Bell, and the San Francisco chapter of Consumer Action. At this time she said that her worst fear for the future was "That consumers will become like the feudal people of old times. That they will be so tied to a VISA card that they are not whole people. That they will be easily manipulated by the television and sellers, that they will do what is suggested to them instead of what comes from their own spirit."

Output:
2