Part 1. Definition
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.
Part 2. 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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Answer: 1
Explanation: The question refers to the 704th unit and task about war which is decribed by Passage 1.
Part 3. Exercise
Question: In what year did the Yardbirds rename themselves Led Zeppelin? Passage 1:The T332 dominated the last three years of the US F5000 championship, with Briton Brian Redman taking the title three times in a row in 1974–76, his most serious rivals Al Unser and Mario Andretti, in 1974–75 in Parnelli T332C. Australian driver Warwick Brown used a T332 to win the 1975 Tasman Series as well as the 1975 New Zealand Grand Prix. In doing so he became the only Australian driver to ever win the Tasman Series. New Zealand driver Ken Smith also used a Lola T332 to win the 1976 New Zealand Grand Prix. Ken Smith had obtained Redman's 1974 US winning chassis and a couple of extremely powerful US F5000 chev engines. Lawrence, after a serious accident in the 72 NZGP regained competitive form in a new T332 in the 1974 Tasman and by 1975 had upgraded his chassis to the specs of Andretti's US car and running with real sponsorship from Malboro, Singapore Airlines and Wix, was Warwick Brown's most serious rival during the 1975 Tasman. As a side note, both the 1975 and 1976 New Zealand Grands Prix were held at Pukekohe Park Raceway. It was generally thought in the 1975 Tasman the two best drivers, Graham MacRae in a MacRae GM2 and Chris Amon in a Talon (a modified version of the GM2) were very much at a disadvantage compared with Lawrence, Brown and Smith in the Lola 332T, although to some extent that was compensated by the very fast Firestone F5000 tyres used by McRae for the last time in NZ which meant MacRae took pole or deadheated for pole time in the four kiwi rounds of the last Tasman. MacRae himself found his own T332 far faster than his GM2 in the 1974/75 US Travellers Cheque F5000 series. Although not able to equal the engine preparation of the Haas or Parnelli teams running at F1 level, even in 1975 at Watkins Geln, Lagua Seca and Long Beach, McRae in a T332 was still as quick as Jarier or Unser while his T332 lasted. In Australasia the T400 never matched the T332 although after its disastrous 1975 series, Max Stewarts T400 was often competitive in 1976 and 1977. In the Shellsport F5000 series in 1975, Peter Gethin and Pilete's T400 was probably quicker than the best T332s of Guy Edwards and Ian Ashley and in 1976 Keith Holland in a T400 often matched Edward's and David Purley 3.6 March and Chevron cars. The last two new T332c F5000s in 1977 were built for Alan Jones for the 1977 Australian Tasman rounds and Keith Holland Shellsport campaign that year. 
 Passage 2:The Yardbirds are an English blues rock band from London. Formed in May 1963, the group originally included lead vocalist Keith Relf, lead guitarist Anthony "Top" Topham, rhythm guitarist Chris Dreja, bassist Paul Samwell-Smith and drummer Jim McCarty. In October, Topham was replaced by Eric Clapton. He remained until 13 March 1965, when he left due to creative disagreements. Clapton recommended Jimmy Page to replace him, but he declined and Jeff Beck took over. Page later joined on bass the following June, after Samwell-Smith abruptly quit; Dreja later took over the role, allowing Page to join Beck on guitar. This lineup was short-lived, however, as Beck left in November 1966. The group continued as a four-piece until July 1968, when Relf and McCarty left due to creative differences, primarily with Page. Dreja initially remained, but by August Page formed a new group with vocalist Robert Plant, bassist John Paul Jones and drummer John Bonham, who later renamed themselves Led Zeppelin.
 Passage 3:The town was built on the mouth of a small tributary of the Severn Estuary near the mouth of the River Avon. The old pill or jetty provided protection for craft against the Bristol Channel's large tidal range, and iron rings can be seen in the high street at which fishing boats used to moor. Its position meant Portishead was used to guard the "King Road", as the waters around the headland are called. In 1497 it was the departure point for John Cabot on the Matthew. A fort was built on Battery Point, and was used during the English Civil War when the town supported the Royalists, but surrendered to Fairfax in 1645. Guns were also placed at Battery Point during World War II. The King Road was the site of a naval action in 1758 when HMS Antelope captured HMS Belliqueux, one of a French squadron returning from Quebec.

Answer:
2