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: Who was the wife of FitzWilliam's brother-in-law? Passage 1:He was born in Melbourne to factory storeman Charles Edward Feltham and Annie Clarke, and was orphaned by the age of fourteen. He attended Melbourne High School and the University of Melbourne, where he received a Master of Law. He became a solicitor in Shepparton. On 16 November 1929 he married Sylvia Josephine Box, with whom he had two children. During World War II he served first in the AIF and then in the Royal Australian Air Force, in which he rose to the rank of wing commander and was attached to the staff of General Douglas MacArthur. He was appointed a Member of the Order of the British Empire in 1943. After the war he returned to his law practice, and also farmed at Wyuna. In 1955 he was elected to the Victorian Legislative Council as a Country Party member for Northern Province. In 1965 he left the Country Party after falling out with leader George Moss over the presidency of the Council, and became an independent. He was defeated in 1967. Feltham died in 1986.
 Passage 2:Jeffrey F. Hamburger (born 1957) is an American art historian specializing in medieval religious art and illuminated manuscripts. In 2000 he joined the faculty of Harvard University, where in 2008 he was appointed the Kuno Francke Professor of German Art and Culture. Hamburger received his B.A., M.A and Ph.D from Yale and has previously held professorships at Oberlin College and the University of Toronto. Elected a Fellow of the Medieval Academy in 2001, he has won numerous awards for his publications, among them: the Charles Rufus Morey Prize of the College Art Association (1999), the Roland H. Bainton Book Prize in Art & Music (1999), the Otto Gründler Prize of the International Congress on Medieval Studies (1999), the Jacques Barzun Prize in Cultural History of the American Philosophical Society (1998), the John Nicholas Brown Prize of the Medieval Academy of America (1994), and the Gustave O. Arlt Award in the Humanities of the American Council of Graduate Schools (1991). His research has been supported by fellowships from the Guggenheim Foundation, the American Philosophical Society, the Institute for Advanced Study, the National Endowment for the Humanities and the Alexander von Humboldt Foundation. In 2009 Hamburger was elected a member of the American Academy of Arts and Sciences and in 2010, of the American Philosophical Society. In 2015 he was awarded an Anneliese Maier Research Award by the Alexander von Humboldt Foundation.
 Passage 3:He was both a Catholic and a royalist, and enjoyed the confidence of Queen Henrietta Maria, who recommended him to Charles I as "a man deserving of every encouragement." In 1645 he tried to get the Confederation of Kilkenny to support King Charles I in the English Civil War on the grounds that their demands for full civic rights to be restored to Roman Catholics would be met. He fought with the Confederates against the Parliamentarians in 1645–6, and led a successful assault on Roscommon Castle in 1646. In 1649 he was imprisoned in London but soon released. After some time in France he was allowed to return to England through the pleas of his brother-in-law John Holles, 2nd Earl of Clare. He is said to have been one of the few Irishmen whom Oliver Cromwell admired, and was also on good terms with Oliver's son Henry Cromwell, although Henry refused his request to be allowed to recover possession of his principal residence, Merrion Castle. During the Commonwealth he seems to have played a careful double game- his second marriage into the Holles family put him in the Parliamentarian camp, but he was also suspected of working for the Restoration of Charles II.

Output:
3