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: How many volunteers did the regiment Pierson helped organize have? Passage 1:Edward J. DeBartolo Corporation formed a joint venture with Homart Development Company, a shopping mall development subsidiary of the department store chain Sears, to begin development on Castleton Square in 1971. DeBartolo announced the mall's development in January of that year and began groundbreaking soon afterward. The original plans called for a Y-shaped enclosed mall with three anchor stores: Sears, J. C. Penney, and Rike Kumler Co. (Rike's), a department store chain based out of Dayton, Ohio. The mall would be situated on 82nd Street just outside the Interstate 465 beltway within the Castleton neighborhood on the northeastern side of Indianapolis. It was the second of three malls built by DeBartolo as a part of its expansion into Indianapolis, following Lafayette Square Mall in 1968 and preceding Washington Square Mall in 1974. The company chose to build on the northeastern side of the Indianapolis metropolitan area, as the area was projected for further suburban growth in the intervening years. Similarly, research conducted by Sears showed a trend in residential growth to the city's northeast side, thus creating a market which the chain deemed suitable for a new store. To accommodate for mall traffic, the Indiana Department of Transportation expanded 82nd Street to a four-lane divided highway. Federated Department Stores (now Macy's, Inc.), then-owners of the Rike's chain, confirmed that the third anchor of Castleton Square would instead be Lazarus, a Columbus, Ohio-based chain then also under their ownership. Also confirmed as tenants for the mall by 1972 were a Kroger supermarket, an F. W. Woolworth Company dime store, and a three-screen movie theater. Inline tenants would include Robert Hall Clothes, Hickory Farms, Kinney Shoes, Zales Jewelers, Waldenbooks, and Orange Julius.
 Passage 2:Pavle Bakić had a timar, as did his father, and held great estates around Venčac in Šumadija called "Bakić's land". He was highly viewed of by the Ottoman Empire, and had the rights to collect taxes (kharaj) from his people. In talks with Pál Tomori and Louis II of Hungary, he left his land with his family, five brothers (including Petar Bakić), and a great number of Serbs, into Hungary, and in return he received the town of Lak among other estates. With his forces he participated in the Battle of Mohács in 1526. When the succession war between Ferdinand I and John Zápolya started, he took the side of Zápolya. After the defeat of Zápolya in the Battle of Tokaj in 1527, he sided with Ferdinand and would stay faithful to him for the rest of his life. In 1528, Ferdinand confirmed Bakić and his brothers' holdings and appointed him the captain of the Serbian infantry, cavalry and river forces. In the defence of Vienna in 1529, Bakić was an important aspect with his cavalry. In charters of 1534, Ferdinand again confirmed Bakić and his brothers' holdings (Lak, Győr, Szombathely, Hédervár and all estates that were part of these towns). The fortress of Győr was administered by his Hungarian ally Count György Cseszneky. A charter dated September 20, 1537, titles him as Despot and called all Serbs to join Bakić as the Serbian Despot. Attempts made by King Ferdinand to push the Ottomans out of Slavonia, with the use of Pavle, were not successful. Bakić did not manage to liberate Osijek from the Ottomans, he then retreated to Đakovo, where he at Gorjani, in a battle against the Ottomans, died (1537). Mehmed-paša sent his son with the head of Bakić to Istanbul.
 Passage 3:In 1857, he enlisted as a private in Company K of the 7th Regiment of the New York National Guard, and was attached to the staff of Brig. Gen. William Hall. At the start of the American Civil War, Pierson helped organize the 1st New York Volunteer Infantry Regiment, and was appointed captain in May 1861. He was promoted several times and assumed command of the regiment on October 9, 1862, with the rank of colonel. Attached to the 3rd Corps, Army of the Potomac, he led the 1st New York in actions at the Seven Days Battles, Second Manassas and the Battle of Fredericksburg. After the Battle of Chancellorsville in May 1863, Colonel Pierson was honorably discharged and mustered out on May 25, 1863. For distinguished service, he was brevetted brigadier general of the United States Volunteers for "gallant and meritorious services."

Answer:
3