Given the task definition, example input & output, solve the new input case.
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.
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-Lo 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 (18941973) 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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Output: 1
The question refers to the 704th unit and task about war which is decribed by Passage 1.

New input case for you: Question: What country was the location of the castle that was exchanged for Dinaburg Castle? Passage 1:Traidenis, known for his devotion to paganism and anti-German attitude, was also successful in fighting with the Livonian Order. In 1270 he won the Battle of Karuse, fought on ice near Saaremaa, and killed Otto von Lutterberg, master of the Order. A new master, Andreas von Westfalen, sought a quick revenge, but was also killed by Traidenis. However, by 1272 the Order retaliated, attacking Semigalia and building Dinaburg Castle in 1273 on lands nominally controlled by Traidenis. Despite four siege engines used to throw stones, he was unable to capture the new fortress and had to retreat in 1278. In 1279 the order attacked Lithuanian lands, reaching as far as Kernave, but on their way back they suffered a great defeat in the Battle of Aizkraukle. The Order's master, Ernst von Rassburg, became the third master to be killed by Traidenis. The defeat encouraged conquered Semigallians to rebel. The Semigalians, led by Nameisis, were now willing to acknowledge Lithuania's superiority and asked Traidenis for assistance. In 1281, Traidenis conquered Jersika Castle in the present-day Preili District, and was able to exchange it for Dinaburg Castle. However, Traidenis died soon afterwards, and assistance to Semigalians, exhausted by constant warfare, diminished. Traidenis is the first known Lithuanian duke to have died a natural death. All others before him were assassinated or killed in battle.
Passage 2:Following their win over the Chargers, the Patriots flew to Orchard Park, New York for an AFC East duel with the Buffalo Bills. The Patriots grabbed the lead in the first quarter, with quarterback Tom Brady throwing two touchdown passes a 14-yarder to wide receiver Wes Welker and a 1-yarder to tight end Rob Gronkowski. The Patriots added to their lead in the second quarter, with Brady connecting with Rob Gronkowski on a 26-yard touchdown pass. The Patriots lead was now 21-0 halfway through the second quarter. The Bills responded, with quarterback Ryan Fitzpatrick throwing an 11-yard touchdown pass to wide receiver Steve Johnson, followed by a 42-yard field goal by placekicker Ryan Lindell. The Bills narrowed the Patriots' lead in the third quarter, with a 3-yard touchdown pass from Fitzpatrick to tight end Scott Chandler. The Patriots increased their lead, with a 23-yard field goal by placekicker Stephen Gostkowski. The Bills tied the game in the fourth quarter, with a 1-yard touchdown run by running back Fred Jackson, then grabbed a 3124 lead when cornerback Drayton Florence returned a Brady interception 27 yards for a touchdown. The Patriots tied the game, with a 6-yard touchdown pass from Brady to Welker. However, the Bills got the last possession, and after a touchdown that was ruled that Fred Jackson's knee hit the ground before he was in the endzone, the Bills killed clock by draining time and making the Patriots use timeouts. The Bills then won as Lindell nailed a 28-yard field goal as time expired, snapping the Patriots' 15-game winning streak against the Bills.
Passage 3:After spending most of early 2010 off TV, Lethal returned on the March 29 episode of Impact! by approaching Hulk Hogan, reminiscing about their days as "The Mega Powers" (Hogan's old team with Randy Savage). Playing along with Lethal's antics, Hogan placed him in charge of the show for his one-week absence due to a business trip. After raising the ire of Hogan's business partner Eric Bischoff with his comedic booking ideas, Bischoff placed Lethal in a two-on-one handicap match against Beer Money, Inc.; Lethal, however, managed to win the match after surprising Robert Roode with a roll-up. On the May 3 episode of Impact!, Hogan gave Lethal Ric Flair's Hall of Fame ring that Abyss had won from him the previous week. When Lethal, now imitating Flair, was confronted by Flair himself, he claimed that he meant no disrespect and out of respect towards Flair, returned the ring to him. This, however, wasn't enough for Flair, who attacked Lethal along with A.J. Styles, Desmond Wolfe and Beer Money, Inc., before he was saved by Abyss, Team 3D and the TNA World Heavyweight Champion Rob Van Dam. At Sacrifice, Lethal came out during the TNA World Heavyweight Championship match between champion Rob Van Dam and challenger A.J. Styles, and locked Ric Flair in a Figure-four leglock in order to prevent him from interfering in the match. On the May 20 episode of Impact!, Lethal competed in his first match after dropping the Black Machismo gimmick, and teamed up with Rob Van Dam to defeat Beer Money, Inc. in a tag team match. After the match, Lethal brawled with Flair. At Slammiversary VIII, Lethal defeated Flair's protege A.J. Styles in a singles match. After defeating Desmond Wolfe, another one of Flair's allies, on the June 17 episode of Impact!, Hogan granted him a match with Flair at Victory Road. On July 11 at Victory Road, Lethal defeated Flair with his own move, the figure-four leglock. On the August 5 episode of Impact!, Lethal faced Flair in a rematch, this time contested under Street Fight rules, with A.J. Styles, Kazarian, Robert Roode and James Storm of Flair's Fortune stable banned from ringside. Flair managed to win the match, after an interference from X Division Champion Douglas Williams, who would officially join Fortune the following week. On September 6, at the tapings of the September 16 episode of Impact!, Lethal defeated Williams to win the X Division Championship for the fourth time. On September 23, at a live event in New York City, Lethal lost the X Division Championship to Amazing Red. Lethal regained the title two days later at a live event in Rahway, New Jersey. At Bound for Glory, Lethal successfully defended the X Division Championship against Douglas Williams.

Output:
1