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.

Ex Input:
Question: How old is the college that Rawson graduated from in 1908? Passage 1:On graduation from Royal Military College, Sandhurst, in 1908, Rawson was commissioned into the Royal Engineers as a second lieutenant. He was promoted lieutenant on 18 August 1910. By 20 November 1915 he had been promoted to captain, and he was then given command of a signals company at a corps headquarters, with a temporary majority, he was awarded the Military Cross (MC) in the 1916 King's Birthday Honours. His temporary rank became a brevet on 3 June 1917. He was appointed assistant director, army signals (with the acting rank of lieutenant-colonel) on 19 April 1917, relinquishing the post (and the rank) on 13 November 1917. He was then appointed a Staff Captain at the War Office on 6 April 1918. He formally transferred from the Engineers to the newly established Royal Corps of Signals on 22 March 1921, and since taking up the post of Staff Captain, had been appointed an Officer of the Order of the British Empire.
Passage 2:Lafosse studied at the IAD (Institut des arts de diffusion) at Louvain-la-Neuve between 1997 and 2001. His graduation film Tribu, a 24-minute short, won the best Belgian short subject category at the 2001 Namur Film Festival. His first full-length feature, Folie Privee (2004), won the FIPRESCI award at the Bratislava International Film Festival., and the semi-autobiographical Ca rend heureux (2006) took the Grand Prix at the 2007 Premiers Plans d'Angers festival. 2006 also saw the release of Nue Propriete, starring Isabelle Huppert and brothers Jeremie and Yannick Renier, which debuted at the Venice Film Festival where it was nominated for the Golden Lion and won a SIGNIS award. The film received the Andre Cavens Award for Best Film by the Belgian Film Critics Association (UCC). For his film Private Lessons (Eleve libre), he was nominated for two Magritte Awards in the category of Best Director and Best Screenplay.
Passage 3:In 1863 he married Helen Magruder, daughter of Commodore George Allan Magruder, of the United States Navy. They had one son, James. They had two daughters, Ella Campbell Scarlett who studied medicine at London School of Medicine for Women and the Royal Free Hospital and became the first female doctor in the state of Bloemfontein, South Africa, and Evelina, who married Major Henry Haverfield, was a suffragette and an aid worker during World War I. One of the two main family estates at this time (the other being the house that is today Inverlochy Castle Hotel) was Abinger Hall, at the foot of the North Downs in Abinger, Surrey. The third baron sold it in 1867 to a Mr Gwynne, who soon thereafter sold it to become the family seat of the statistician recently created first Lord Farrer, who rebuilt the house on that land.

Ex Output:
1

Ex Input:
Question: What types of planes did the Australian Flying Corps use the year Holden volunteered for them? Passage 1:"Where the Dream Takes You" is a "tender" pop power ballad with contemporary R&B, soul and lite rock influences, performed in an urban contemporary style. According to the song's official sheet music, published by Walt Disney Music Publishing on Musicnotes.com, "Where the Dream Takes You" is set in signature common time and performed at a moderate tempo of 88 beats per minute in the key of C major. The Disney Song Encyclopedia author Thomas S. Hischak believes that the song's lyrics are "about following your heart to find your true self", which begin "They'll try to hold you back, they will say you're wrong, but they will never understand, no, the journey that you're on." A writer for Barnes & Noble agreed that, thematically, the single "correlates to the film's tale of an inexperienced young adventurer", Milo Thatch, and its diverse cast of supporting characters, all of whom long to follow various dreams of their own as they search for Atlantis. One of its verses reads, "There's something in your soul/That won't be denied/It's the faith to dream that keeps the dream alive/So you still believe and you know you must go", encouraging listeners to follow their dreams despite others' opinions. Lasting a duration of four minutes, AllMusic cites the song's mood as both "earnest" and "mellow"; Mya performs it using a "sweet vocal", which spans two octaves from G3 to D5. Based on a melody heard only briefly during the film, "Where the Dream Takes You" encompasses "soft, contemporary beats" combined with the singer's "dulcet tones" that recall music played in a piano lounge, contrasting with the time period in which the film itself is set. Its production, which has been described as "polished", was handled by Jay Selvester, Robbie Buchanan and Ron Fair.
Passage 2:The ruins of the Norman Canterbury Castle and St Augustine's Abbey are both open to the public. The medieval St Margaret's Church now houses "The Canterbury Tales", in which life-sized character models reconstruct Geoffrey Chaucer's stories. The Westgate is now a museum relating to its history as a jail. The medieval church of St Alphege became redundant in 1982 but had a new lease of life as the Canterbury Urban Studies Centre, later renamed the Canterbury Environment Centre; the building is used by the King's School. The Old Synagogue, now the King's School Music Room, is one of only two Egyptian Revival synagogues still standing. The city centre contains many timber-framed 16th and 17th century houses, however there are far fewer than there were before the Second World War, as many were damaged during the Baedeker Blitz. Many are still standing, including the "Old Weaver's House" used by the Huguenots. St Martin's Mill is the only surviving mill out of the six known to have stood in Canterbury. It was built in 1817 and worked until 1890; it is now a house conversion. St Thomas of Canterbury Church is the only Roman Catholic church in the city and contains relics of Thomas Becket.
Passage 3:Holden enlisted in the Australian Imperial Force on 26 May 1915, and was posted to the 4th Light Horse Brigade as a private. He departed for Egypt aboard the transport A29 Suevic on 13 June. Serving as a driver first in the Middle East and then on the Western Front, his mechanical ability and sense of adventure led him to volunteer for the Australian Flying Corps (AFC) in December 1916. After qualifying as a pilot in England, he was commissioned a lieutenant and posted to No.2 Squadron. Commanded by Major Oswald Watt, No.2 Squadron's personnel included many former Lighthorsemen, as well as mechanics from the AFC's first combat formation, the Mesopotamian Half Flight. The force trained extensively in England commencing in January 1917, before deploying to the Western Front that September. Holden was involved in the AFC's first day of combat in France; just after noon on 2 October, in the vicinity of Saint-Quentin, he and his wingman engaged a German two-seater that managed to escape.

Ex Output:
3

Ex Input:
Question: Which astronomer who went on an expedition for the French Academy of Sciences was the oldest? Passage 1:Tatel received his Bachelor of Arts degree from the University of Michigan and his Juris Doctor from the University of Chicago Law School. Following law school, he served as an instructor at the University of Michigan Law School and then joined Sidley Austin in Chicago. Since then, he served as founding director of the Chicago Lawyers' Committee for Civil Rights Under Law, Director of the National Lawyers' Committee for Civil Rights Under Law, and Director of the Office for Civil Rights of the United States Department of Health, Education, and Welfare during the Carter Administration. Returning to private practice in 1979, Tatel joined Hogan & Hartson, where he founded and headed the firm's education practice until his appointment to the D.C. Circuit. While on sabbatical from Hogan & Hartson, Tatel spent a year as a lecturer at Stanford Law School. He also previously served as Acting General Counsel for the Legal Services Corporation.
Passage 2:When Bart and Milhouse visit the local video arcade at the beginning of the episode, Martin Prince is seen playing an arcade game based on the 1981 film My Dinner with Andre. Other games at the arcade include a game based on the 1984 film The Terminator. The "Springfield, Springfield" number performed by Bart and Milhouse on their night out in town is a reference to the musical number "New York, New York" from the film On the Town, starring Gene Kelly and Frank Sinatra. During a scene in which Hans Moleman and Moe fight with knives, Hans tells Moe, "You call that a knife? This is a knife!", a reference to a line from the 1986 film "Crocodile" Dundee. Ernest Borgnine introduces himself a la Troy McClure to the Junior Campers by recalling his role in From Here to Eternity, a film which modern children are unlikely to have seen. During a hallucination, Homer imagines himself singing the song "Sugar, Sugar" by The Archies while dancing with lollipops and ice cream cones. While on the raft, Homer misquotes lines from Samuel Taylor Coleridge's The Rime of the Ancient Mariner when he says "Water, water everywhere/So let's all have a drink." The scene in which Borgnine and the other rafters drift through a dark forest watched by mountain men is a reference to a scene in the 1972 film Deliverance, and the scene features the music from the film's "Dueling Banjos" scene. The unseen person or creature that attacks Borgnine at the end of the episode is implied to be Jason Voorhees from the Friday the 13th film series.
Passage 3:Bouguer, La Condamine, Godin and their colleagues measured arcs of the Earth's curvature on the Equator from the plains near Quito to the southern city of Cuenca. These measurements enabled the first accurate determination of the shape of the Earth, eventually leading to the establishment of the international metric system of measurement. When an International Commission for Weights and Measures was convened in Paris to settle the true length of the metre, it adopted on 22 June 1799 a standard metre based on the length of the half meridian connecting the North pole with the Equator. The French Academy of Sciences had commissioned an expedition led by Jean Baptiste Joseph Delambre and Pierre Mechain, lasting from 1792 to 1799, which attempted to accurately measure the distance between a belfry in Dunkerque and Montjuic castle in Barcelona at the longitude of Paris Pantheon. This portion of the Paris meridian was to serve as the basis for the length of the half meridian connecting the North Pole with the Equator. The metre was defined as the ten-millionth of the half meridian's length extrapolated from a Earth's flattening of 1/334 obtained from the results of the survey by Delambre and Mechain combined with those of the Peru meridian arc as established by La Condamine and his colleagues.

Ex Output:
3