Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following 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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Solution: 1
Reason: The question refers to the 704th unit and task about war which is decribed by Passage 1.

Now, solve this instance: Question: How many miles long is the canal where the battleship was transferred to in December? Passage 1:As of the 2010 United States Census, the district had a population of 217,333, of whom 170,857 (78.6%) were of voting age. The racial makeup of the district was 170,111 (78.3%) White, 24,275 (11.2%) African American, 1,008 (0.5%) Native American, 2,730 (1.3%) Asian, 92 (0.0%) Pacific Islander, 13,299 (6.1%) from some other race, and 5,818 (2.7%) from two or more races. Hispanic or Latino of any race were 37,552 (17.3%) of the population. The district had 148,110 registered voters as of November 30, 2017, of whom 62,965 (42.5%) were registered as unaffiliated, 44,004 (29.7%) were registered as Republicans, 40,159 (27.1%) were registered as Democrats, and 982 (0.7%) were registered to other parties.
 Passage 2:The discography of American rock band A Day to Remember consists of six studio albums, three video albums, three extended plays and thirteen singles. The band signed to Indianola in February 2005 and released their debut album And Their Name Was Treason a few months later. Their second album, For Those Who Have Heart, was released in January 2007 and peaked at number 17 on the Heatseekers Album chart in the US; a re-release charted at number 43 on the Independent Albums chart in the US. Released in February 2009, Homesick charted at number 21 on the Billboard 200 chart and at number 1 on the Independent Albums chart. From the album, only the "Have Faith in Me" single charted; at number 40 on the Alternative Songs chart. Second single "Downfall of Us All" and album track "If It Means a Lot to You" were both certified Gold by the RIAA for 500,000 downloads each. Fourth album What Separates Me from You (2010) debuted at number 11 on the Billboard 200 and its lead single "All I Want" peaked at number 12 on the Alternative Songs chart. Fifth album Common Courtesy (2013) was first released only digitally due a legal label dispute; a physical release followed later. The band released their sixth album, Bad Vibrations, in 2016.
 Passage 3:After the beginning of World War I in August 1914, Swiftsure escorted troop convoys in the Indian Ocean until she was transferred to the Suez Canal Patrol in December. After defending the Canal in early 1915 from Ottoman attacks, the ship was then transferred to the Dardanelles in February and saw action in the Dardanelles Campaign bombarding Ottoman fortifications. Triumph participated in the hunt for the German East Asia Squadron of Maximilian Graf von Spee and in the campaign against the German colony at Tsingtao, China. The ship was transferred to the Mediterranean in early 1915 to participate in the Dardanelles Campaign. She was torpedoed and sunk off Gaba Tepe by the German submarine on 25 May 1915.

Student:
3