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 year did the Scramble for Africa begin? Passage 1:In 945, Bosenbach had its first documentary mention when Otto I, Holy Roman Emperor, granted his faithful follower Franko a few landholds. To better describe where these landholds lay, both Reichenbach and Bosenbach were named. Either Franko or his heirs yielded these lands shortly after 945 to Saint Maximin's Abbey in Trier. Until about 1100, Bosenbach was listed time and again as being among the monastery's holdings. Territorially, Bosenbach belonged to the Imperial Domain (Reichsland) around Kaiserslautern and about 1130, it came to be held as a Palatine fief by the Counts of Veldenz. About 1282, the Amt of Bosenbach (Bosenbach, Niederstaufenbach and Friedelhausen) was held in common ownership by the Counts of Veldenz and the Waldgraves. Later, in the 14th and 15th centuries, the common ownership had ended and it was owned by the Waldgraves and Rhinegraves (one group). In 1595, through territorial trade, the Amt found its way back into the Duchy of Palatinate-Zweibrücken. From the years 1514, 1537 and 1578 come three Weistümer dealing with Bosenbach (a Weistum – cognate with English wisdom – was a legal pronouncement issued by men learned in law in the Middle Ages and early modern times; Weistümer is the plural).
 Passage 2:The 1880s saw an intense competition between the European powers for territories in Africa, a process known as the Scramble for Africa. The process culminated in the Berlin Conference of 1884, in which the European nations concerned agreed upon their respective territorial claims and the rules of engagements going forward. As a result of this France gained control of the upper valley of the Niger River (roughly equivalent to the areas of modern Mali and Niger). France had already conquered most of northern Algeria during the period 1830-47, incorporating it as an integral part of France. France occupied the area of modern Niger in 1900, declaring it a military territory, ruled originally from Zinder. Niger was originally included, along with modern Mali and Burkina Faso, within the Upper Senegal and Niger colony, however it was split off in 1911 and became a constituent of the federal colony of French West Africa (Afrique occidentale française, abbreviated AOF). In the meantime in Algeria France had been pushing south from the littoral region, conquering much of the Algerian Sahara in 1902. A boundary between French West Africa and French Algeria (i.e. what are now Algeria’s borders with Mauritania, Mali and Niger) was agreed on 7 June 1905 by the Commandant of Upper Senegal and Niger and the Military Commander of the Department de l'Oasis within French Algeria. The border was further defined by the Niamey Convention of June 1909.
 Passage 3:The discography of South Korean-born Australian recording artist Dami Im consists of five studio albums, two extended plays, ten singles, two album appearances, and four music videos. Im began her music career as a gospel singer in Korea and independently released her debut studio album, Dream, in 2010. She was the winner on the fifth season of The X Factor Australia in 2013, and subsequently received a contract with Sony Music Australia. Im released her self-titled second studio album in November 2013, which features selected songs she performed as part of the top twelve on The X Factor. The album debuted at number one on the ARIA Albums Chart and was certified platinum by the Australian Recording Industry Association (ARIA), denoting shipments of 70,000 copies. Additionally, the album also included Im's debut single "Alive", which topped the ARIA Singles Chart and was certified platinum. She became the first X Factor Australia contestant to follow up a number one single with a number one album on the ARIA Charts.


Ex Output:
2


Ex Input:
Question: Who was chairman before Rawlings took over in 1981? Passage 1:Thomas was born to Thomas Marston Green Sr., a future Colonel in the Continental Army, and Martha Wills. He was born in Williamsburg, Virginia, on February 26, 1758. In 1782 he moved with his family to Natchez District, Mississippi Territory. He would later move to Fayette, Mississippi where he would build the Springfield Plantation, and where he would live until his death. The Green family were good friends with Andrew Jackson and Rachel Donelson. Thomas's brother Abraham married Elizabeth Caffery who was the niece of Rachel Jackson. In August 1791, Andrew Jackson and Rachel were married at the Green Family Springfield Plantation. The marriage ceremony was performed by Thomas Green Sr., while Thomas Jr. served as a witness. Andrew and Rachel would later find out that Rachel's divorce was not finalized, at the time of the wedding.
 Passage 2:New York played a pivotal role during the American Revolution and subsequent war. The Stamp Act Congress in 1765 brought together representatives from across the Thirteen Colonies to form a unified response to British policies. The Sons of Liberty were active in New York City to challenge British authority. After a major loss at the Battle of Long Island, the Continental Army suffered a series of additional defeats that forced a retreat from the New York City area, leaving the strategic port and harbor to the British army and navy as their North American base of operations for the rest of the war. The Battle of Saratoga was the turning point of the war in favor of the Americans, convincing France to formally ally with them. New York's constitution was adopted in 1777, and strongly influenced the United States Constitution. New York City was the national capital at various times between 1785 and 1790, where the Bill of Rights was drafted. Albany became the permanent state capital in 1797. In 1787, New York became the eleventh state to ratify the United States Constitution.
 Passage 3:Rawlings initially came to power in Ghana as a flight lieutenant of the Ghana Air Force following a coup d'état in 1979 and, after initially handing power over to a civilian government, took back control of the country on 31 December 1981 as the Chairman of the Provisional National Defence Council. In 1992, Rawlings resigned from the military, founded the National Democratic Congress, and became the first President of the Fourth Republic. He was re-elected in 1996 for four more years. After two terms in office, the limit according to the Ghanaian Constitution, Rawlings endorsed his vice-president John Atta Mills as presidential candidate in 2000. He currently serves as the African Union envoy to Somalia.


Ex Output:
3


Ex Input:
Question: What is the area code of the town where Milligan was born? Passage 1:By the start of the 1926 season, Cochrane was already considered the best catcher in the major leagues. He won the American League Most Valuable Player Award, mostly for his leadership and defensive skills, when he led the American League in putouts and hit .293 along with 10 home runs and 58 runs batted in. Cochrane was a catalyst in the Athletics' pennant-winning years of 1929, 1930 and 1931, during which he hit .331, .357 and .349 respectively. He played in those three World Series, winning the first two, but was sometimes blamed for the loss of the 1931 World Series, when the St. Louis Cardinals, led by Pepper Martin, stole eight bases and the Series. However, in his book The Life of a Baseball Hall of Fame Catcher, author Charlie Bevis cites the Philadelphia pitching staff's carelessness in holding runners as a contributing factor. Notwithstanding this, the blame for the 1931 World Series loss dogged Cochrane for the rest of his life.
 Passage 2:Born in LaRue, Ohio, McMillan attended the Western College for Women and Westminster College in Pennsylvania. She then studied under George Luks and Hans Hofmann and at the Pratt Institute before traveling to Paris for further instruction with André Lhote and at the Fontainebleau School of Art. She is known to have been active in Washington, D.C. at least as early as 1931, continuing her activities there until at least 1967. Beginning in 1931, for over twenty years she taught painting and art history at the National Cathedral School, from which she retired in 1955. Long a member of the Arts Club of Washington, she had one-woman shows there in 1938 and 1947. Other solo shows occurred at George Washington University and at the Studio Gallery in New York City. She also belonged to the Society of Washington Artists, at whose 1932 exhibition she presented an oil titled Taos, New Mexico, and th Washington Water Color Club, and she exhibited with both the National Association of Women Artists and the National Association of Women Painters and Sculptors during her career. An article which she penned about the Society of Washington Artists was published in 1963 by the Columbia Historical Society. Milligan eventually moved to Tryon, North Carolina to join the artists' colony there. She died in Tryon; her body was returned to Ohio for burial, and rests in the Bellefontaine City Cemetery in Bellefontaine.
 Passage 3:Through the Cold War, the United States, Soviet Union and other countries contemplated the possibility of nuclear warfare. While previous technology had developed to protect the crews of armored vehicles from projectiles and from explosive damage; the possibility of radiation arose. In the NATO countries little if any development took place on defining a doctrine of how to use armed forces without the use of tactical nuclear weapons. In the Soviet sphere of influence the legacy doctrine of operational maneuver was being theoretically examined to understand how a tank-led force could be used even with the threat of limited use of nuclear weapons on prospective European battlefields. The Warsaw Pact arrived at the solution of maneuver warfare while massively increasing the number of anti-tank weapons. To achieve this, Soviet military theorists such as Vasily Sokolovsky (1897-1968) realized that anti-tank weapons had to assume an offensive role rather than the traditionally defensive role of the Great Patriotic War (1941-1945) by becoming more mobile. This led to the development of improved guided anti-tank missiles, though similar design work was being performed in Western Europe and the United States.


Ex Output:
2