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: What country were US tanks still rolling toward in March of 2003? Passage 1:Wilson was the son of Alexander Robertson Wilson, writer (or solicitor) and town clerk of the then Royal and Ancient Burgh of Irvine, and Elizabeth Wylie Murray. He was born in Irvine. He was named for a great-grandfather, John Gray, who was town clerk of Ayr, and joint secretary of the first Burns festival there in 1844; an uncle 'John Gray Wilson' had died at the age of 14. The John Gray Wilson of this article, the Sheriff, was educated at Irvine Royal Academy; the Edinburgh Academy, where he was Dux (leading scholar) in 1935; and, as an Open Classics Scholar, at Oriel College, Oxford where he graduated B.A.. In the long vacation of 1936 he contracted polio, which left him with a weakened leg and chest, and contributed to his early death. (At the time of this enforced absence, his name was used by a fantasist claiming to have been an aviator during the Spanish Civil War.) After Oxford, he attended Edinburgh University where he received the degree of Bachelor of Laws. In 1943 he married Nan MacAuslan, herself active in the liberal Party and later awarded a PhD by the University of Edinburgh for a Thesis on the Social Anthropology of the Faculty of Advocates. They had three sons.
 Passage 2:MEED was launched in 1957. When Rafiq Hariri drew up plans to rebuild a war-shattered Lebanon, MEED met the prime minister and asked him to explain them. When Colonel Gaddafi unveiled the first part of his Great Manmade River, MEED took a front-row seat at the ceremony and quizzed the engineers. While US tanks were still rolling towards Baghdad in March 2003, MEED obtained plans from Washington that described how the US was hoping to rebuild the country. Three months before going public, MEED revealed DP World's IPO plans. Abdalla el-Badri announced Opec's potential move from US dollar to euro pricing to MEED. MEED broke news of Saudi Arabia moving ahead with plans for a Mile-High Tower in Jeddah – which would make it the tallest tower in the world – and Nakheel's plans to create a tower over one kilometre high (then called Nakheel Tower, later announced as Dubai's Harbour Tower) to trump Emaar's Burj Khalifa.
 Passage 3:Balsdon skips one of the top teams in Ontario. As of 2019, Balsdon has played in 13 provincial championships. He first played at the provincials in 1999, playing for John Base (4th place). He left the Base rink in 2000 to form his own team. He qualified again in 2002 as a skip, again finishing 4th. His next provincial was the 2005 Ontario Kia Cup, where his rink finished 4th once again. He qualified again in 2007, where he once again finished 4th at the 2007 TSC Stores Tankard. His next provincial in 2011 would be more successful. At the 2011 provincial championship, he lost to the (then) five-time defending champion Glenn Howard rink in the final. At the time, Balsdon represented the one-sheet Loonie Curling Club located in Chaffeys Locks, Ontario, north of Kingston. Despite representing the club, he had only played there once. The Loonie was built in 2008, and Balsdon has represented it twice. Balsdon returned to the Tankard in 2012, finishing tied for 8th. Despite battling an injury for much of the season, Baldson won his first provincial men's title in 2014, when his rink defeated Glenn Howard in the Ontario final. The win broke Howard's record eight-year provincial championship streak. The team was named after third Mark Bice who had skipped the team through zone and regional play due to Baldson recovering from a broken rib. However, Balsdon would skip the team in the provincial championship. The team represented Ontario at the 2014 Tim Hortons Brier, where they went 5-6 in the round robin, missing the playoffs. The following season, at the 2015 Ontario Tankard, Balsdon and his rink lost in a tie breaker. Following the season, the team broke up.


Ex Output:
2


Ex Input:
Question: How many years did the war last for which the 60th anniversary of its end was celebrated by the 2005 European Stars' Tour? Passage 1:Erdem Moralioglu is a Canadian and Turkish fashion designer. He was born in Montreal, Quebec, Canada to a Turkish father and an English mother (Nee Jeavons) and grew up between Montreal and Birmingham, England. A graduate of Marianopolis College, he earned a B.A. in fashion from Ryerson University in Toronto, Ontario, Canada and then worked as an intern for Vivienne Westwood. Erdem moved to London in 2000 to study fashion at the Royal College of Art on a Chevening Scholarship. Upon receiving his master's degree in 2003, he went on to close the 2003 RCA show with his graduate collection. He then moved to New York where he worked alongside Diane von Fürstenberg before relocating back to London to launch his own label, ERDEM, in 2005.
 Passage 2:Kalivodová first worked with the Prague State Opera in 2001, as part of the Pounding on the Iron Curtain project, a production of two operas by Vladimir Wimmer. In 2002 she made her first appearance at the National Moravian-Silesian Theatre in Ostrava, playing Kontshakovna in the opera Prince Igor. Later the same year she performed the role of Amastrys in Opera Praha's production of Xerxes, which toured Germany, Switzerland, France and Luxembourg. In December 2003 she performed with Leo Nucci of the New York Metropolitan Opera at the Žofín Palace in Prague, followed by an appearance at the Konzerthaus in Vienna in June 2004 to mark the accession of the Czech Republic to the European Union. Kalivodová has since then performed around the world, including the Centre for Fine Arts in Brussels, and the State Kremlin Palace in Moscow, as well as concerts in Japan and the United States, and joined the European Stars' Tour in 2005, celebrating the 60th anniversary of the end of the Second World War. 
 Passage 3:He was born in Kirkenes as the son of teachers Trygve Laudal (1896–1964) and Agnes Mønnesland (1898–1982). He finished his secondary education in 1954 in Mandal, and enrolled in the University of Oslo in the same year. He studied at École Normale Supérieure from 1957, but in 1958 he was back in Oslo and took the cand.real. degree. He was a research fellow at Columbia University and Institut Henri Poincaré between 1959 and 1962. He was appointed as lecturer at the University of Oslo in 1962, was promoted to docent in 1964 and was a professor from 1985 to 2003. His most notable book is 1979's Formal Moduli of Algebraic Structures. He was among the founders of the Abel Prize, and has been involved in the International Centre for Theoretical Physics. He is a member of the Norwegian Academy of Science and Letters, and has been a deputy member of Bærum municipal council for the Socialist Left Party.


Ex Output:
2


Ex Input:
Question: Was the founder of the strong LDP faction or the man whose hands it later fell into older? Passage 1:In 1922, Heitler began his study of physics at the Karlsruhe Technische Hochschule, in 1923 at the Humboldt University of Berlin, and in 1924 at the Ludwig Maximilian University of Munich (LMU), where he studied under both Arnold Sommerfeld and Karl Herzfeld. The latter was his thesis advisor when he obtained his doctorate in 1926; Herzfeld taught courses in theoretical physics and one in physical chemistry, and in Sommerfeld's absence often took over his classes. From 1926 to 1927, he was a Rockefeller Foundation Fellow for postgraduate research with Niels Bohr at the Institute for Theoretical Physics at the University of Copenhagen and with Erwin Schrödinger at the University of Zurich. He then became an assistant to Max Born at the Institute for Theoretical Physics at the University of Göttingen. Heitler completed his Habilitation, under Born, in 1929, and then remained as a Privatdozent until 1933. In that year, he was let go by the university because he was Jewish.
 Passage 2:Belgrade marshalling yard () or Makiš railway station (), or Makiš freight station, is a classification yard of the Belgrade railway junction and the largest railway station in Serbia. It is located in the neighbourhood of Makiš in Čukarica of Belgrade. The railroad continues to Ostružnica in one line via park A, in the other direction to Ostružnica via park B, in third direction to Resnik via junction B near Železnik and junction K of Belgrade railway junction near Petlovo Brdo, in fourth direction to Resnik via junction R in the tunnel below Vidikovac and junction A near Kneževac, in the fifth direction to Rakovica via park B and junction R, in the sixth direction to Rakovica via park A and junction T, in the seventh direction to Rakovica via park B and junction T per second line and the eight towards direction to Jajinci. Belgrade marshalling yard consists of 120 railway tracks.
 Passage 3:Hashimoto became a key figure in the strong LDP faction founded by Kakuei Tanaka in the 1970s, which later fell into the hands of Noboru Takeshita, who then was tainted by the Recruit scandal of 1988. In 1991, the press had discovered that one of Hashimoto's secretaries had been involved in an illegal financial dealing. Hashimoto retired as Minister of Finance from the Second Kaifu Cabinet. Following the collapse of the bubble economy, the LDP momentarily lost power in 1993/94 during the Hosokawa and Hata anti-LDP coalition cabinets negotiated by LDP defector Ichirō Ozawa. Hashimoto was brought back to the cabinet when the LDP under Yōhei Kōno returned to power in 1994 by entering a ruling coalition with traditional archrival Japanese Socialist Party (JSP), giving the prime ministership to the junior partner, and the minor New Party Harbinger (NPH). Hashimoto became Minister of International Trade and Industry in the Murayama Cabinet of Tomiichi Murayama. As the chief of MITI, Hashimoto made himself known at meetings of APEC and at summit conferences.


Ex Output:
3