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

New input: Question: What other countries did Loring fight with while he supported the United nations command ground troops? Passage 1:In July 1952, Loring transferred to the 36th Fighter-Bomber Squadron full-time, where he served as operations officer. In this role he returned to combat duty, this time as a jet aircraft fighter pilot operating the F-80 Shooting Star. Missions for this unit primarily concerned close air support, air strikes and interdiction missions supporting United Nations Command ground troops in the country. In this role, Loring's unit primarily fought North Korean and Chinese ground targets. By November 22, 1952, Loring had completed 50 combat missions. At that time the ground battle in Korea had developed into a stalemate, with the two sides firmly entrenched along the 38th Parallel. Throughout November, the UN forces had been launching Operation Showdown against two targets: Triangle Hill and Sniper Ridge, northwest of Kunwha, north of the 38th Parallel. During the battle, the Chinese managed to amass 133 large caliber guns, 24 BM-13 rocket launchers and 47 anti-aircraft guns in the largest Chinese artillery operation during the Korean War, and it posed a serious threat to ground troops of the ROK 2nd Infantry Division operating in the area. The artillery was heavily guarded, forcing the UN forces to use airpower to combat them.
 Passage 2:"Something" received the Ivor Novello Award for the "Best Song Musically and Lyrically" of 1969. Harrison subsequently performed the song at his Concert for Bangladesh shows in 1971 and throughout the two tours he made as a solo artist. Up to the late 1970s, it had been covered by over 150 artists, making it the second-most covered Beatles composition after "Yesterday". Shirley Bassey had a top-five UK hit with her 1970 recording, while Frank Sinatra regularly performed the song. Other artists who have covered "Something" include Elvis Presley, Ray Charles, Peggy Lee, James Brown, Tony Bennett, Andy Williams, Smokey Robinson and Ike & Tina Turner. In 1999, Broadcast Music Incorporated named "Something" as the 17th-most performed song of the twentieth century, with 5 million performances. In 2004, it was ranked at number 278 on Rolling Stones list of "The 500 Greatest Songs of All Time", while two years later, Mojo placed it at number 7 in the magazine's list of the Beatles' best songs. A year after Harrison's death in November 2001, McCartney and Eric Clapton performed it at the Concert for George tribute at London's Royal Albert Hall.
 Passage 3:From the mid-1970s, DJs in early discothèques were performing similar tricks with disco songs (using loops and tape edits) to get dancers on the floor and keep them there. One noteworthy figure was Tom Moulton who invented the dance remix as we now know it. Though not a DJ (a popular misconception), Moulton had begun his career by making a homemade mix tape for a Fire Island dance club in the late 1960s. His tapes eventually became popular and he came to the attention of the music industry in New York City. At first Moulton was simply called upon to improve the aesthetics of dance-oriented recordings before release ("I didn't do the remix, I did the mix"—Tom Moulton). Eventually, he moved from being a "fix it" man on pop records to specializing in remixes for the dance floor. Along the way, he invented the breakdown section and the 12-inch single vinyl format. Walter Gibbons provided the dance version of the first commercial 12-inch single ("Ten Percent", by Double Exposure). Contrary to popular belief, Gibbons did not mix the record. In fact his version was a re-edit of the original mix. Moulton, Gibbons and their contemporaries (Jim Burgess, Tee Scott, and later Larry Levan and Shep Pettibone) at Salsoul Records proved to be the most influential group of remixers for the disco era. The Salsoul catalog is seen (especially in the UK and Europe) as being the "canon" for the disco mixer's art form. Pettibone is among a very small number of remixers whose work successfully transitioned from the disco to the House era. (He is certainly the most high-profile remixer to do so.) His contemporaries included Arthur Baker and François Kevorkian.

Solution:
1