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: Who was in charge of the Suez Canal Company when it was seized by the Egyptian government? Passage 1:It returned to racing in the 1961 season for the 12 Hours of Sebring, driven by Giancarlo Baghetti, Mairesse, Ginther and Wolfgang von Trips, finishing second overall behind teammates Phil Hill and Olivier Gendebien. At the Targa Florio it was team's sole front-engine entry, with Mairesse and Pedro Rodríguez driving. They retired after one of the drivers crashed during practice. 0780TR returned to the factory for repairs and modification of its nose to TRI/61 style. This was completed in time for the car to be run by the factory-supported North American Racing Team in the 1961 1000 km Nürburgring. Driven by Pedro Rodríguez and his younger brother Ricardo, the car finished second behind the Maserati Tipo 61 of Lloyd Casner and Masten Gregory. The Rodriguez brothers had to pit late in the race after destroying a front wheel, eliminating any chance of a win. The car then was entered by Scuderia Ferrari in the 1961 24 Hours of Le Mans, driven by Mairesse and Mike Parkes. After a poor start, they finished second, again behind Hill and Gendebien. They ran third for much of the race, achieving second when the Rodríguez brothers' 250 TRI61 retired with broken pistons with two hours to go. In the season-ending Pescara 4 Hours 0780TR was driven to victory by Scuderia Ferrari's Lorenzo Bandini and Giorgio Scarlatti, despite an oil leak that saw Bandini fall back to 27th. From this position, he regained second place with his rapid pace and won when the leading Camoradi Maserati Tipo 61 retired.
 Passage 2:Nehru's foreign policy was the inspiration of the Non-Aligned Movement, of which India was a co-founder. Nehru maintained friendly relations with both the United States and the Soviet Union, and encouraged the People's Republic of China to join the global community of nations. In 1956, when the Suez Canal Company was seized by the Egyptian government, an international conference voted 18–4 to take action against Egypt. India was one of the four backers of Egypt, along with Indonesia, Sri Lanka, and the USSR. India had opposed the partition of Palestine and the 1956 invasion of the Sinai by Israel, the United Kingdom and France, but did not oppose the Chinese direct control over Tibet, and the suppression of a pro-democracy movement in Hungary by the Soviet Union. Although Nehru disavowed nuclear ambitions for India, Canada and France aided India in the development of nuclear power stations for electricity. India also negotiated an agreement in 1960 with Pakistan on the just use of the waters of seven rivers shared by the countries. Nehru had visited Pakistan in 1953, but owing to political turmoil in Pakistan, no headway was made on the Kashmir dispute.
 Passage 3:The word stevedore originated in Portugal or Spain, and entered the English language through its use by sailors. It started as a phonetic spelling of estivador (Portuguese) or estibador (Spanish), meaning a man who loads ships and stows cargo, which was the original meaning of stevedore (though there is a secondary meaning of "a man who stuffs" in Spanish); compare Latin stīpāre meaning to stuff, as in to fill with stuffing. In the United Kingdom, people who load and unload ships are usually called dockers, in Australia dockers or wharfies, while in the United States and Canada the term longshoreman, derived from man-along-the-shore, is used. Before extensive use of container ships and shore-based handling machinery in the United States, longshoremen referred exclusively to the dockworkers, while stevedores, in a separate trade union, worked on the ships, operating ship's cranes and moving cargo. In Canada, the term stevedore has also been used, for example, in the name of the Western Stevedoring Company, Ltd., based in Vancouver, B.C., in the 1950s.

Example Output: 2

Example Input: Question: Which ruler died first? Passage 1:Finn's first commission was as project manager for the Rice Hotel, under contract with the firm of Mauran, Russell & Crowell. The owner of the new hotel, Jesse H. Jones, soon after established a collaboration with Finn which would change the face of Downtown Houston. Finn designed two buildings for Jones across the way from the Rice Hotel: the Foster Building, aka the Houston Chronicle Building, in 1914, and the Rusk Building in 1916. The corner of Texas and Travis was dominated by buildings built by Finn and Jones. In 1926, Finn designed a new seventeen-story wing for the Rice Hotel on behalf of Jones. Finn did architectural work for other commercial clients in the 1920s. He completed State National Bank Building (NHRP-listed) at 412 Main Street in 1923. Jones contracted with Finn to build the Lamar Hotel, where Jones established his new residence. The Jones apartment consumed the whole top floor, though he hired John F. Staub for the interior design. Jones also promised a venue for the 1928 Democratic National Convention without consulting the city of Houston, pledging $200,000 of his own capital. He engaged Finn and Kenneth Franzheim to design and erect the Sam Houston Hall in just four months. The Sam Houston Hall, ostensibly built to be a temporary structure, was larger than Madison Square Garden, and equipped with heavy-duty fans and apertures between the roof and the walls to facilitate air flow. Jones contracted with Finn on another project in downtown Houston, this time with in collaboration with Franzheim and J.E.R. Carpenter, to finish the 37-story, art deco Gulf Building in 1929 at that time the tallest building in Texas.
 Passage 2:In the spring of 1902, Bulgaria, an Ottoman vassal state which was interested in acquiring Macedonia, signed a military convention with Russia. Late in the fall, Russia, supported by the United Kingdom and France, proposed to the Ottomans political reforms for the Macedonian vilayets. On 8 December, the Ottoman sultan, Abdul Hamid II, signed a decree implementing most of the reforms. In February 1903, the new Russian foreign minister, Vladimir Lamsdorf, visited Vienna and signed the so-called "Vienna Program" on Macedonian reforms. The program was substantially the same as the Ottoman decree of December. The immediate provocation of a new agreement at Mürzsteg was the Ilinden–Preobrazhenie Uprising that broke out on 2 August. With its quick suppression, the Vienna Program lay dead. In September Tsar Nicholas II of Russia visited the Emperor Francis Joseph of Austria-Hungary at the latter's castle in Mürzsteg, Austria. The two rulers put their signatures to a new memorandum, substantially identical to the Vienna Program, which called for the appointment of one Russian and one Austro-Hungarian civil agent to oversee the reform of the administration, judiciary and local gendarmerie in the Macedonian vilayets. In all these institutions Christians were to take part. After Abdul Hamid accepted the proposal in November, Russia appointed one N. Demerik as its agent, and Austria chose one G. Müller. They began their work under Hüseyin Hilmi Pasha, the Inspector-General of Macedonia, in early 1904. Under the Mürzsteg program, each Great Power appointed an advisory official to the Ottoman official in charge of reforming the gendarmerie in each province. Austria-Hungary appointed an advisor to the sanjak of Üsküp, Russia to the sanjak of Thessaloniki, France to the sanjak of Siroz and Britain to the sanjak of Drama.
 Passage 3:Crimea: The Last Crusade is a panoramic history of the Crimean War of 1853–56. Drawing extensively from Russian, French and Ottoman as well as British archives, it combines military, diplomatic, political and cultural history, examining how the war left a lasting mark on the national consciousness of Britain, France, Russia and Turkey. Figes sets the war in the context of the Eastern Question, the diplomatic and political problems caused by the decay of the Ottoman Empire. In particular, he emphasises the importance of the religious struggle between Russia as the defender of the Orthodox and France as the protector of the Catholics in the Ottoman Empire. He frames the war within a longer history of religious conflict between Christians and Muslims in the Balkans, southern Russia and the Caucasus that continues to this day. Figes stresses the religious motive of the Tsar Nicholas I in his bold decision to go to war, arguing that Nicholas was swayed by the ideas of the Pan-Slavs to invade Moldavia and Wallachia and encourage Slav revolts against the Ottomans, despite his earlier adherence to the Legitimist principles of the Holy Alliance. He also shows how France and Britain were drawn into the war by popular ideas of Russophobia that swept across Europe in the wake of the Revolutions of 1830 and 1848. As one reviewer wrote, Figes shows "how the cold war of the Soviet era froze over fundamental fault lines that had opened up in the 19th century."

Example Output: 2

Example Input: Question: Is the Washington Aqueduct still in use today? Passage 1: the 1840s and 1850s the largest cities in the U.S. built pipelines to supply drinking water from rivers or lakes. However, the drinking water was initially not treated, since the link between waterborne pathogens and diseases was not yet well known. In 1842 New York City was one of the first cities in the U.S. to tap water resources outside the city limits. It dammed the Croton River in Westchester County, New York, and built an aqueduct from the reservoir to the city. Also in 1842, construction was completed on Chicago's first water works, with water mains made of cedar and a water intake located about into Lake Michigan. In 1848, Boston began construction of a water transmission system. A tributary of the Sudbury River was impounded creating Lake Cochituate, from where the Cochituate Aqueduct transported water to the Brookline Reservoir that fed the city's distribution system. In 1853 Washington, D.C. followed suit by beginning the construction of the Washington Aqueduct to provide water from the Great Falls on the Potomac River.
 Passage 2:In the Seven Years' War, he served as adjutant in the staff of Duke Ferdinand of Brunswick and on 1 August 1759 was wounded at Minden. On 14 October 1760 he commanded a Light Company at the Battle of Campen, where he was again wounded. One year later, as Lt. Colonel of the 98th Foot, he participated in the Capture of Belle Île, off the coast of Brittany. Next, he served at the Battle of Havana in 1762. Later, he was on the staff of Wilhelm, Count of Schaumburg-Lippe during the Spanish invasion of Portugal (1762). In 1763 he retired on half-pay, but in 1772 he received a promotion to Colonel and served as aide-de-camp to King George III.
 Passage 3:Down the coast of Africa: The Portuguese reached the westernmost point of Africa in 1444 and in 1458 rounded Cape Palmas where the coast tends eastward. Here the trade winds gave out and they faced the irregular winds near the doldrums and the east-flowing Guinea Current. In 1471 they reached the Gold coast where they found the gold that had previously come by caravan across the Sahara. In 1474 Lopes Gonçalves reached the point where the coast turns south and became the first European sailor to cross the equator. In 1475-79 Spain and Portugal fought along the coast. The Treaty of Alcáçovas gave the whole area to the Portuguese except for the Canaries. This was the first colonial war and the first colonial treaty. In 1482 Diogo Cão continued south against the Benguela current and the southeast trade winds, reaching the Congo River in 1482 and Cape Cross in Namibia in 1485. In 1487 Bartolomeu Dias reached Cape Voltas near the mouth of the Orange River and stood out to sea. Although the sources are not clear, he may have guessed that there were southern westerlies and was trying a volta do mar. After many days, at about 40 degrees south he discovered the westerlies and turned east. Finding no land after a number of days he turned north and reached Mossel Bay about 400 km east of Cape Town. He continued east against the Agulhas current to Algoa Bay where the coast began to turn north. Guessing that he had found the route to India, he turned back, discovered and rounded the Cape of Good Hope and reached Lisbon in 1488. In 1493 Columbus arrived at Lisbon with news of the new world and reported that he had sailed out of sight of land for five weeks. 

Example Output:
1