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.
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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: Which of the opera companies that Albers sang for was established earliest?  Passage 1:The epsilon axe is a type of battle axe named for its similarity to the Greek letter epsilon (ϵ). The epsilon axe was widely used throughout the Middle East, its usage spread from there and grew in popularity to be used in eastern Europe and Russia as well as the Nordic countries. The axe is also depicted in Egyptian hieroglyphics with the warrior carrying both the epsilon axe and a shield thus leaving some to believe that this weapon was used also as a one handed weapon. Bronze examples of the Assyrian design are kept in the British Museum. Some historians have called the epsilon axe the "poor man's" kopesh, it is possible that the epsilon axe would be assigned to less valuable or "irregular" infantry while main forces would be equipped with the kopesh.
 Passage 2:After Antwerp, Albers was engaged as Principal Baritone at the Opéra de Bordeaux and went on to sing at the Royal Opera House in London and the Opéra de Monte-Carlo. He was engaged by the Metropolitan Opera in 1898 and sang with the company both on tour and in New York City. He made his company debut on 8 November 1898 as Mercutio in the Met's touring performance of Roméo et Juliette in Chicago. He remained with the company through 1899, appearing 36 times in eight different operas and tackling his first Wagnerian role, Wolfram in Tannhäuser. On his return to Europe he sang regularly at the Théâtre de la Monnaie in Brussels from 1901 to 1906 and added several more Wagnerian roles to his repertoire: Telramund in Lohengrin; Hans Sachs in Die Meistersinger von Nürnberg; Wotan in Das Rheingold, Siegfried, and Die Walküre; and Kurwenal in Tristan und Isolde. A highly versatile singer, he also appeared in the title roles of La Monnaie's productions of Hamlet, Rigoletto, Hérodiade, and Le roi Arthus, as well as singing Count di Luna in Il trovatore, Iago in Otello, and Baron Scarpia in Tosca.
 Passage 3:In 2010, Sims collaborated on the Lecrae album Rehab, featuring on the song "High", also featuring Sho Baraka, and co-wrote and provided backing vocals to the song "Killa." That same year, she designed the cover to Deitrick Haddon's soundtrack album Blessed & Cursed - Voices of Unity, which included her song "So What". Sims also provided art direction for Juanita Bynum's album More Passion and creative design for Thankful by Myron Williams. In 2011, Sims wrote for and contributed vocals to Blacklight by Tedashii and The Good Life (2012) by Trip Lee, and featured on the song "Fantasy" from the latter album. She also featured on the single "Hello" from KB's forthcoming album Weight & Glory (2012), an album to which she also contributed some song-writing. She also featured on two songs by Pro, "Get In" from PSA Vol. 2 and "Drink from His Cup" from Dying to Live, the song "Survivor" by Da' T.R.U.T.H. from his album The Whole Truth, the "Battle Song" by Lecrae from his album , and Canon's song "Poppin' Off" from the album Blind World. Additionally, that year Sims co-founded the hip hop group High Society, along with Sho Baraka, J.R., and Swoope. The group released its first single, "One Moment", on June 20, and a second single, "Devil", on October 31, 2011.

Output:
2