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 input: 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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Example output: 1
Example explanation: The question refers to the 704th unit and task about war which is decribed by Passage 1.
Q: Question: How long had the Bee Gees been making music for by the year Saturday Night Fever was released? Passage 1:In 1938 Rudenko was signed up to the Ballet Russe de Monte Carlo, where, at 17, she was their youngest soloist. Her stage name was Lubov Roudenko, and she was also popularly known as "Spitfire Lu-Lu." She had a can-can sequence in the 1938 ballet Gaîté Parisienne choreographed specially for her by Léonide Massine. She would later reprise this role in the 1941 Oscar-nominated short film The Gay Parisian. Whilst with the Ballet Russes, Rudenko was the subject of several drawings by Henri Matisse in 1939. Four of his portrait sketches of her are now in the Fogg Museum. Matisse also made a drawing of Rudenko in the ballet  Rouge et Noir. While on tour with the Ballet Russe, Rudenko performed the role of the Cowgirl in the 1942 ballet Rodeo until the tour reached New York and Agnes de Mille, the original choreographer, reclaimed the role for herself. Disappointed by this, Rudenko quit the Ballet Russes, and took a better-paid job performing in a Broadway production of The Merry Widow. This production launched at the Majestic Theatre on 4 August 1943, with Rudenko and James Starbuck leading the character dances, including a comic polka and a can-can number. After this, Rudenko played Grisette in Nellie Bly, a short-lived 1946 musical based on the life of Nellie Bly, and then became lead dancer for the 1946-49 Broadway production of Annie Get Your Gun, but following a knee injury, decided to pursue a career in fashion design. She continued performing until 1951, appearing in the 1950-51 Olsen and Johnson revue Pardon our French.
 Passage 2:Bhutia has had limited opportunities in playing overseas. On 30 September 1999, he travelled overseas to play for Bury in Greater Manchester, England. He became only the second Indian footballer to play professionally in Europe after Mohammed Salim. By penning a three-year contract he also became the first Indian footballer to sign for a European club. This followed unsuccessful trials for Bhutia with Fulham, West Bromwich Albion and Aston Villa. He had difficulty obtaining a visa and could not make his debut, until 3 October 1999 against Cardiff City. In that match, he came on as a substitute for Ian Lawson and played a part in Bury's second goal, which was scored by Darren Bullock after Bhutia's volley was deflected into his path. On 15 April 2000, he scored his first goal in the English league in the game against Chesterfield. A recurring knee injury limited him to only three games in his final season at Bury, and he was released after the club was placed in administration. His final appearance was a 3–0 defeat to Swindon Town on 27 August 2001.
 Passage 3:For many people, disco is the genre of music most readily associated with the 1970s. First appearing in dance clubs by the middle of the decade, (with such hits as "The Hustle" by Van McCoy), artist like Donna Summer, Gloria Gaynor popularized the genre and were described in subsequent decades as the "disco divas." The movie Saturday Night Fever was released in December 1977, starring John Travolta and featuring the music of the Bee Gees and several other artists. It had the effect of setting off disco mania in the United States. the Bee Gees' soundtrack to Saturday Night Fever became the one best selling album of all time. The Bee Gees and Donna Summer became the genres mega stars. The Bee Gees had 9 number 1 singles, and 12 top 10 hits on the Billboard Hot 100 Chart. Donna Summer had 4 number 1 singles, and 8 top 5 hits, 9 top 10s during the second half of the decade. Summer would be the first female artist of the modern era, to have the number one single and number album, simultaneously on the pop charts. She would accomplish this 3 times in 8 months. She was the first female artist to have 3 number one singles, and 5 top 10, and or; 5 top 5 singles in a calendar year (1979). The other prominent acts of the genre were KC and the Sunshine Band who scored 4 number one singles, The Village People, and Chic. KC and the Sunshine Band would enter the first week of the new decade (80s) with their fifth number one single, and Donna Summer would enter the new decade with her third number one double album.

A:
3