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.

Let me give you an 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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The answer to this example can be: 1
Here is why: The question refers to the 704th unit and task about war which is decribed by Passage 1.

OK. solve this:
Question: In what country did De Koning attend a gymnasium? Passage 1:De Koning attended a Gymnasium in Meppel from April 1939 until September 1943. On 10 May 1940 Nazi Germany invaded the Netherlands and the government fled to London to escape the German occupation. During the German occupation De Koning continued his study but in September 1943 he joined the Dutch resistance against the German occupiers barely 17-years old. Following the end of World War II De Koning volunteered and enlisted in the Royal Netherlands East Indies Army as a Corporal serving in the Dutch East Indies from August 1945 until June 1948. De Koning applied at the Utrecht University in June 1948 majoring in Social geography and obtaining an Bachelor of Social Science degree in July 1950 and worked as a student researcher before graduating with an Master of Social Science degree in July 1958. De Koning worked as a trade association executive for the (CBTB) from February 1955 until November 1961 and worked as a researcher at the Royal Academy of Arts and Sciences from November 1961 until January 1964. De Koning worked again as a trade association executive for the Christian Farmers and Gardeners association serving as General-Secretary of the Executive Board from January 1964 until May 1971.
 Passage 2:Born in Madison Court House, Virginia, Mallory attended private schools and graduated from the University of Virginia in 1827. He engaged in agricultural pursuits in La Grange, Kentucky, studied law and was admitted to the bar in 1837, commencing practice in New Castle, Kentucky. He was elected an Opposition and later Unionist to the United States House of Representatives in 1858, serving from 1859 to 1865, being unsuccessful for reelection in 1864. There, Mallory served as chairman of the Committee on Roads and Canals from 1859 to 1863. He was a delegate to the National Union Convention in 1866 and was one of the vice presidents of the Centennial Exposition in 1876. He resumed agricultural pursuits until his death near La Grange, Kentucky on August 11, 1885. He was interred in Spring Hill Family Cemetery in Ballardsville, Kentucky.
 Passage 3:During 1993 and 1994, Neville expanded his repertoire as a recording artist and ventured into making country music. In 1993, Neville released The Grand Tour on A&M Records. The Grand Tour was a No.1 song for country music legend George Jones in 1974 and while Neville's version only peaked at No.38 on the Billboard country singles chart, it was highly acclaimed by fans and critics, resulting in a nomination for the Grammy Award for Best Male Country Vocal Performance at the 36th Annual Grammy Awards in 1994. Neville's next country music project involved appearing on Rhythm, Country and Blues, an album of duets featuring R&B and Country artists performing renditions of classic country and R&B songs. Neville recorded a version of I Fall to Pieces, a major crossover hit for Patsy Cline originally released in 1961, with Trisha Yearwood that resulted in Neville and Yearwood winning the Grammy Award for Best Country Collaboration with Vocals at the 37th Annual Grammy Awards. As a result, Neville became one of the only African American recording artists to win a Grammy within the Country genre.

Answer:
1