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-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.
.
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: When was the flag that the King pulled first created? Passage 1:Before the ceremony began, King Edward VIII, present in his capacity as king of Canada, inspected the guard of honour, was introduced to the honoured guests, and spent approximately half an hour speaking with veterans in the crowd. Two Royal Air Force and two French Air Force squadrons flew over the monument and dipped their wings in salute. The ceremony itself began with prayers from chaplains representing the Church of England, the United Church of Canada, and the Roman Catholic Church. Ernest Lapointe, Canadian Minister of Justice, spoke first, followed by Edward VIII who, in both French and English, thanked France for its generosity and assured those assembled that Canada would never forget its war missing and dead. The King then pulled the Royal Union Flag from the central figure of Canada Bereft and the military band played the Last Post. The ceremony was one of the King's few official duties before he abdicated the throne. The pilgrimage continued, and most participants toured Ypres before being taken to London to be hosted by the British Legion. One-third of the pilgrims left from London for Canada on 1 August, while the majority returned to France as guests of the government for another week of touring before going home.
 Passage 2:McClean made his first start for Sunderland in their 1–0 victory over Manchester City on 1 January 2012, and scored his first senior goal for the Black Cats in a 4–1 win against Wigan Athletic two days later; on 8 January, he scored and assisted Sebastian Larsson in a 2–0 win at Peterborough United in the third round of the FA Cup. McClean provided the assist for Stéphane Sessègnon's opening goal in Sunderland's 2–0 victory over Swansea City on 21 January, and got another assist in the equalising goal for Fraizer Campbell in the next round of the cup against Middlesbrough on 29 January. Ahead of the replay for that fixture, Middlesbrough manager Tony Mowbray used McClean as an example for young players to follow. McClean turned provider again in Sunderland's 3–0 victory over Norwich City, assisting Sessègnon's goal, then scored the only goal in a win over Stoke City on 4 February in snowy conditions at the Britannia Stadium. A week later, he opened the scoring in Sunderland's 2–1 home loss to Arsenal after Per Mertesacker injured himself. On 23 March, Sunderland announced that McClean had signed a new contract intended to force him to stay at the club until the summer of 2015. A day later, he helped them to a 3–1 victory over relegation-threatened Queens Park Rangers by assisting the opening goal for Nicklas Bendtner and later scoring by himself. McClean won Sunderland's Young Player of the Year Award, at the end of the 2011–12 season.
 Passage 3:After stopping at Madeira and the Cape Colony, the Investigator reached Australia in December 1801. It sailed along the south coast, through Bass Strait, and north along the east coast to overwinter at Port Jackson. It then sailed north up the east coast, rounding the Cape York Peninsula and entering the Gulf of Carpentaria. The ship by then being in extremely poor condition, the survey was broken off and the Investigator was sailed to Koepang, Timor. Many members of the crew became sick with dysentery there, and Flinders took the decision to return to Port Jackson as quickly as possible. They sailed southwards well west of the west coast of Australia, then east along the south coast, arriving back at Port Jackson in June 1802. The Investigator was condemned, and Flinders sailed for England as passenger on the Porpoise, there to ask for a new ship. Though initially inclined to remain at Port Jackson with some of the other naturalists, ultimately Allen chose to board the Porpoise. On 17 August the Porpoise was wrecked on Wreck Reef. Everyone on board was marooned on a sandbank for six weeks while Flinders sailed the ship's cutter back to Port Jackson to seek help. When help arrived it was in the form of two ships, one of which would return to Port Jackson, while the other was en route to China. Allen elected to sail to China. From there he took a passage to England on the Henry Addington. Arriving at Brighton on 8 August 1804, Allen made his way to London, where he gave to Banks the first eye-witness account of the voyage, including breaking the news of the death at Port Jackson of the gardener Peter Good.

Output:
1