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: When did the first battle of the river, in whose second battle Tur participated, occur? Passage 1:During the Middle Ages, Europeans who could afford it employed seamstresses and tailors. The vital importance of sewing was indicated by the honorific position of "Lord Sewer" at many European coronations from the Middle Ages. An example was Robert Radcliffe, 1st Earl of Sussex who was appointed Lord Sewer at the coronation of Henry VIII of England in 1509. Sewing for the most part was a woman's occupation, and most sewing before the 19th century was practical. Clothing was an expensive investment for most people, and women had an important role in extending the longevity of items of clothing. Sewing was used for mending. Clothing that was faded would be turned inside-out so that it could continue to be worn, and sometimes had to be taken apart and reassembled in order to suit this purpose. Once clothing became worn or torn, it would be taken apart and the reusable cloth sewn together into new items of clothing, made into quilts, or otherwise put to practical use. The many steps involved in making clothing from scratch (weaving, pattern making, cutting, alterations, and so forth) meant that women often bartered their expertise in a particular skill with one another. Decorative needlework such as embroidery was a valued skill, and young women with the time and means would practise to build their skill in this area. From the Middle Ages to the 17th century, sewing tools such as needles, pins and pincushions were included in the trousseaus of many European brides.
 Passage 2:When Italy entered World War I, on 24 May 1915, Tur was the executive officer of the destroyer Irrequieto. He soon obtained his first command, a torpedo boat in the Northern Adriatic Sea. For an action with his torpedo boat off the coast of Pola, he was awarded a Bronze Medal of Military Valor. In June 1917 he was promoted to Lieutenant Commander, and in March 1918 he was given command of the "Caorle" Battalion of the Marine Regiment, deployed on the Piave River. In command of the "Caorle" Battalion, Tur participated in the Second Battle of the Piave River and the Battle of Vittorio Veneto, receiving for his actions two Silver Medals for Military Valor and another Bronze Medal.
 Passage 3:James was the son of Henry Lewis James, who was Dean of Bangor from 1934 to 1940. He was educated at Rossall School and Jesus College, Oxford, where he obtained a first-class degree in Literae Humaniores. He was also awarded a doctorate by the University of London. He was a housemaster at St Paul's School and taught classics from 1928 to 1939. In 1939, he became headmaster of Chigwell School before returning to St Paul's as High Master in 1946. In 1953, he became headmaster of Harrow School and on his death it was said that the prestige of the school had "seldom stood higher" than it had during his 18-year period in office. He was regarded as friendly and approachable, and was a traditionalist rather than an innovator. He twice hosted visits to the school by Elizabeth II and was awarded the CBE in 1971. He died on 14 May 1982 in Oxford at the age of 76.

A:
2