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 was general Frunze when he led the Red Army during the Bukhara operation? Passage 1:Bukhara was the last capital of the Emirate of Bukhara and was besieged by the Red Army during the Russian Civil War. During the Bukhara operation of 1920, an army of well-disciplined and well equipped Red Army troops under the command of Bolshevik general Mikhail Frunze attacked the city of Bukhara. On 31 August 1920, the Emir Alim Khan fled to Dushanbe in Eastern Bukhara (later he escaped from Dushanbe to Kabul in Afghanistan). On 2 September 1920, after four days of fighting, the emir's citadel (the Ark) was destroyed, the red flag was raised from the top of Kalyan Minaret. On 14 September 1920, the All-Bukharan Revolutionary Committee was set up, headed by A. Mukhitdinov. The government—the Council of People's Nazirs (see nāẓir)—was presided over by Faizullah Khojaev.
 Passage 2:Grosheide was elected as a Member of the House of Representatives after the election of 1971, taking office on 11 May 1971. Following the Grosheide was appointed as State Secretary for Justice in the Cabinet Biesheuvel I, taking office on 28 July 1971. The Cabinet Biesheuvel I fell just one year later on 19 July 1972 and continued to serve in a demissionary capacity until it was replaced by the caretaker Cabinet Biesheuvel II with Grosheide continuing as State Secretary for Justice, taking office on 9 August 1972. In August 1972 Grosheide announced that he would not stand for the election of 1972. The Cabinet Biesheuvel II was replaced by the Cabinet Den Uyl on 11 May 1973. Grosheide remained in active politics, in January 1974 he was nominated as Mayor of Rijswijk, serving from 1 February 1974 until his resignation on 1 July 1978. Grosheide also worked as the director of the Abraham Kuyper Foundation from 1 July 1974 until 1 August 1979. Grosheide worked as a civil servant for the Ministry of Justice from July 1978 until February 1993 and served as Director-General of the Custodial Institutions Agency from July 1978 until January 1991. Grosheide was appointed as Special Coordinator for European Immigration an Asylum and Deputy Secretary-General of the Ministry of Justice on 1 January 1991. In January 1993 Grosheide was nominated as Extraordinary Member of the Council of State, he resigned as a Special Coordinator the day he was installed as a Member of the Council of State, serving from 1 February 1993 until 1 September 2000.
 Passage 3:The cut, is crossed by Ham Bridge from the rest of Old Windsor to Ham Island. Much smaller Lion Island is at the top where the flows split. Then Albert Bridge crosses to Datchet including at its lowest point, the thin island of Sumptermead Ait. On the Windsor side (right bank), the river winds round farmland at Princes Consort farm and Windsor Castle Home Park. There follows Victoria Bridge connecting the upper end of Datchet then a golf course, followed by Black Potts Railway Bridge. The railway bridge has a great brick pier in Black Potts Ait, behind which the Jubilee River rejoins the Thames. The left bank becomes playing fields of Eton College. The area known as Black Potts up to Romney Island is an attraction where those fishing have included Isaak Walton who wrote a major work which promoted angling and Charles II in the century before.


Ex Output:
1


Ex Input:
Question: What country is it perceived that Marcos went on a diplomatic mission to in 1417? Passage 1:He first appears in Constantinople in 1401, qualified as an oikeios of the emperor. In 1417 he was possibly sent on a diplomatic mission to the Venetians in the Morea. In 1422 and again in 1429 he was sent by Emperor John VIII Palaiologos as an envoy to the Ottoman Sultan Murad II. At the time he had the relatively lowly rank of protovestiarites, but was quickly promoted to protostrator and then to the senior rank of megas stratopedarches, which he held already during his mission in 1430 to Pope Martin V. During his return from the mission to the Pope, on orders from the Emperor, he raised Thomas Palaiologos to the rank of Despot in the Morea. He led two more missions abroad, one in 1433 to Pope Eugene IV, and one in 1438 to Venice.
 Passage 2:Truman had acceded to the presidency in April 1945 after the death of Franklin D. Roosevelt. Defeating attempts to drop him from the ticket, Truman won the presidential nomination at the 1948 Democratic National Convention. The Democratic convention's civil rights plank caused a walk-out by several Southern delegates, who launched a third-party "Dixiecrat" ticket led by Governor Strom Thurmond of South Carolina. The Dixiecrats hoped to win enough electoral votes to force a contingent election in the House of Representatives, where they could extract concessions from either Dewey or Truman in exchange for their support. Truman also faced a challenge from the left in the form of former Vice President Henry A. Wallace, who launched the Progressive Party and challenged Truman's confrontational Cold War policies. Dewey, who was the leader of his party's moderate eastern wing and had been the 1944 Republican presidential nominee, defeated Senator Robert A. Taft and other challengers at the 1948 Republican National Convention.
 Passage 3:The 2nd World Water Forum held in The Hague in March 2000 raised some controversies that exposed the multilateral nature and imbalance the demand and supply management of freshwater. While donor organizations, private and government institutions backed by the World Bank, believe that freshwater should be governed as an economic good by appropriate pricing, NGOs however, held that freshwater resources should be seen as a social good. The concept of network governance where all stakeholders form partnerships and voluntarily share ideas towards forging a common vision can be used to resolve this clash of opinion in freshwater management. Also, the implementation of any common vision presents a new role for NGOs because of their unique capabilities in local community coordination, thus making them a valuable partner in network governance.


Ex Output:
1


Ex Input:
Question: Which is the biggest school that Taube attendend? Passage 1:Between 1989 and 2006, about 1.6 million Soviet Jews and their non-Jewish relatives and spouses, as defined by the Law of Return, emigrated from the former Soviet Union. About 979,000, or 61%, migrated to Israel. Another 325,000 migrated to the United States, and 219,000 migrated to Germany. According to the Israeli Central Bureau of Statistics, 26% of the immigrants who arrived in Israel were not considered Jewish by Orthodox interpretations of Jewish law (which only recognizes matrilineal descent), but were eligible for Israeli citizenship under the Law of Return due to patrilineal Jewish descent or marriage to a Jew. The majority of the immigrant wave were Ashkenazi Jews; however, a significant proportion were Mizrahi groups such as the Mountain Jews, Georgian Jews, and Bukharan Jews – with each ethnic group bringing its own distinctive culture to Israel. The group successfully integrated economically into Israel: in 2012, the average salary of FSU (Former Soviet Union) immigrants was comparable to that of native-born Israeli Jews.
 Passage 2:In 1996, Electro-Motive Diesel entered full production on their , 16-cylinder H-engine, and all SD90MACs made from then on used that for its prime mover. Locomotives fitted with this engine are sometimes referred to as SD90MAC-H locomotives. Later versions of the SD90MAC-H feature a Phase II cab, with a new nose which offers higher visibility from the cab than the old nose. The SD90MAC-H did not prove popular with railroads and less than 70 were built, including Electro-Motive Diesel demonstrator units. Since the SD90MAC-H had such a large prime mover, it didn't offer the same operational flexibility as smaller units, limiting its possible customer base to only the largest railroads. Also, since the H-engine was a new design it hadn't reached the same level of reliability as EMD's previous engine. The low reliability on such a large engine was an especially bad combination since the loss of one engine in a train meant the loss of a larger percentage of pulling power than had a smaller engine failed. In the end the SD90MAC-H was only delivered to two railroads, the Union Pacific Railroad and the Canadian Pacific Railway. The Canadian Pacific locomotives were part of an earlier order for 710-engine equipped SD90MAC locomotives that was still in production when Electro-Motive Diesel switched over to the H-engine.
 Passage 3:Taube was born in New York City in 1939 to Count Arvid E. Taube and Alice N. Taube. After attending Kent School, he enrolled at Princeton University, from which he graduated in 1961 with a B.A. in sociology. He went on to receive a doctorate in sociology from American University in 1983. He began working at the National Institute of Mental Health in 1961 as a statistician, and continued to work there until 1987, eventually becoming director of their Division of Biometry and Applied Sciences. He also began a mental health economics program at the NIMH and started their "Mental Health, United States" series, a regularly published report cataloging mental health statistics in the United States. In 1980, he was awarded the Administrators Award for Meritorious Achievement from the Alcohol Drug Abuse and Mental Health Agency. In 1987, he became a professor in the Department of Mental Hygiene at the Johns Hopkins School of Hygiene and Public Health, where he continued to teach until his death. On September 28, 1989, he died of congestive heart failure at the Johns Hopkins Hospital in Baltimore, Maryland. In 1990, the American Public Health Association established the Carl Taube Award for Lifetime Contribution to the Field of Mental Health in honor of his work.


Ex Output:
3