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: What book first introduces the white wizard? Passage 1:Meanwhile, the wizard Gandalf the White and the hobbit Pippin arrive at Minas Tirith to warn Denethor, the Steward of the Throne, about the upcoming war—only to discover that the Steward has become insane and means to take his own life. Frodo and Samwise continue toward Mount Doom (eluding Ringwraiths and infiltrating a "battalion of orcs" in the process) only to be attacked by Gollum. As Sam holds Gollum off, Frodo reaches the Crack of Doom; but is subverted by the Ring. At the same time, Gondor's neighboring country, Rohan, helps it claim victory in the Battle of Pelennor Fields, where King Théoden and the Witch-King of Angmar are slain. Upon his own arrival, Aragorn plans to confront Sauron at the gates of Mordor. Here, he quarrels with the Mouth of Sauron and the two armies prepare for battle.
 Passage 2:It was used initially by transient work crews timbering and building temporary river boats to haul cargo known as arks, a common solution to ship upstream resources out of the frontier. As such early on it anchored a sawmill, tavern, crude housing, tool and work sheds, and in 1804–05, a toll house built for the Lehigh and Susquehanna turnpike, climbing the nearby ravine of Jean's Run as it began the sharp ascent up Broad Mountain to pass in succession along the banks of the Black Creek, Quakake Creek, Beaver Creek valleys in (the future) Carbon County, Pennsylvania then climb Hazel Creek into Luzerne County up to the flat area of the Mountain pass, a marshy saddle which would become Hazelton, PA near the 1780s settlement of St John's along the descent to Nescopeck on the Susquehanna – PA 93 follows much of the same road bed, save for starting at an elevated altitude from the nearby town of Nesquehoning, PA via a high level bridge.
 Passage 3:Amongst her first commissions was the St Ita window for St Brendan's cathedral in Loughrea in 1904, which was designed by Sarah Purser. O'Brien joined An Túr Gloine in 1906, beginning her career there by designing Angel of the Annunciation window in the Enniskillen convent chapel. For a window in the Wilson private chapel Coolcarrigan, Naas, County Kildare in 1912, O'Brien incorporated Celtic design, some drawing on the Book of Durrow. In 1914, she toured the cathedrals of Paris, Rouen, and Chartres with Purser and Wilhelmina Geddes. O'Brien designed three windows depicting St John, St Flannan, and St Munchin, for the Honan Chapel in University College Cork in 1916. Her 1923 design of the centenary memorial window in St Andrew's church, Lucan, represented the parable of the Good Shepherd. When in 1925 An Túr Gloine became a cooperative society, O'Brien became a shareholder along with Ethel Rhind, Evie Hone, and Michael Healy.

Answer:
1