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.
.
Solution: 1
Why? The question refers to the 704th unit and task about war which is decribed by Passage 1.

New input: Question: Was Constantinople part of Russia in 1918? Passage 1:While serving as president of Osh State University, Beshimov became increasingly outspoken in his criticism towards then president Askar Akayev. Effective reforms of Osh State University gained him large popularity among the students. Students therefore protested, when Beshimov's political activity caused him to be fired. That same year Beshimov ran for a newly opened parliamentary spot from a district in Osh, and won a landslide victory. Beshimov became a prominent opposition leader. There were numerous attempts to assassinate and throw him in jail by the Akayev regime. Beshimov played a major role in negotiations with Askar Akayev on succeeding certain roles to the opposition. Under the agreement reached in the year 2000, Beshimov was appointed as Kyrgyzstan's ambassador to India with concurrent accreditation to Bangladesh, Nepal and Sri Lanka. Following the Tulip Revolution Beshimov returned to Kyrgyzstan to serve as vice-president of American University of Central Asia. Beshimov was a big supporter of and believer in the Tulip Revolution. After the new government followed short of promises made during the Tulip Revolution, and started reverting the course back to dictatorial rule, Beshimov re-engaged in politics, going into opposition against Kurmanbek Bakiyev. In December 2007 he was elected to Kyrgyzstan's Parliament, the Supreme Council, on the candidate list of the Social Democratic Party of Kyrgyzstan. He is the leader of the opposition fraction in the Kyrgyz Parliament.
 Passage 2:Susan Barbara Gyankorama Ofori-Atta also de Graft-Johnson, (1917 – July 1985) was a Ghanaian medical doctor – the first female doctor on the Gold Coast. She was the first Ghanaian woman and fourth West African woman to earn a university degree. Ofori-Atta was also the third West African woman to become a physician after the Nigerians Agnes Yewande Savage (1929) and Elizabeth Abimbola Awoliyi (1938). In 1933, Sierra Leonean political activist and higher education pioneer, Edna Elliot-Horton became the second West African woman university graduate and the first to earn a bachelor's degree in the liberal arts. Eventually Ofori-Atta became a medical officer-in-charge at the Kumasi Hospital, and later, she assumed in charge of the Princess Louise Hospital for Women. Her contemporary was Matilda J. Clerk, the second Ghanaian woman and fourth West African woman to become a physician, who was also educated at Achimota and Edinburgh. Ofori-Atta was made an Honorary Doctor of Science by the University of Ghana for her work on malnutrition in children, and received the Royal Cross from Pope John Paul II when he visited Ghana in 1980, in recognition of her offering of free medical services at her clinic. She helped to establish the Women's Society for Public Affairs and was a Foundation Fellow of the Ghana Academy of Arts and Sciences. Her achievements were a symbol of inspiration to aspiring women physicians in Ghana.
 Passage 3:The Bagration family's genealogy traces back at least to the medieval era in its male line and hundreds of years further back as rulers in the female line. Leonida's grandfather, Prince Alexander Bagration of Mukhrani, was born in 1853 in Georgia's historical capital Tbilisi, then part of the Russian Empire, and was killed by Bolsheviks at Pyatigorsk in 1918 during the Russian revolution. Fearing for their lives, the family took refuge in Constantinople, then spent eight months in Germany before returning to Tbilisi, now capital of the Georgian Soviet Socialist Republic, to re-claim a portion of property which, as émigrés they risked losing to total confiscation. Although the family made repairs to their home and Leonida would recall her grandfather's insistence that they continue to dine formally on silver plate to retain their sense of propriety, they were eventually deprived of all but two rooms of their old palace and subjected to harassment. Thanks to the intervention of Maxim Gorky, who had enjoyed the patronage of the Bagrations, in 1931 they once again fled the Soviet Union, going into exile in Spain. The family moved to France, where Leonida's grandmother and relations had already settled.

Solution:
3