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: How tall is the mountain range where the Snoqualmie and Skykomish Rivers originate? Passage 1:The Snohomish River forms at the confluence of the Snoqualmie and Skykomish Rivers just west of Monroe. Both of these rivers originate in the Cascades and drain the west slopes of the mountains in southeastern Snohomish County and northeastern King County. The Snohomish River flows generally northwestward from the confluence, passing under state route 522 and flowing alongside Lord Hill Park before reaching downtown Snohomish. Here, it is joined by the Pilchuck River, its main tributary, and flows under state route 9. From Snohomish, the river continues northwestward through a broad floodplain, forming the eastern boundary of the city of Everett. The final few miles of the river in Everett form the Snohomish River estuary, a river delta that features wetlands and tideflats spread out across various islands and arms of the river. Several bridges carry U.S. 2, Interstate 5, and state route 529 across the delta. The river then empties into Possession Sound, which is part of Puget Sound, between Everett and Marysville.
 Passage 2:Cameron began as an office dogsbody with the Weekly News in 1935. Having worked for several Scottish newspapers and for the Daily Express in Fleet Street, he was rejected for military service in World War II. After the war, his experience of reporting on the Bikini Atoll nuclear experiments turned him into a pacifist and a founding member of the Campaign for Nuclear Disarmament. He continued to work for the Express until 1950, after which he briefly joined Picture Post, where he and photographer Bert Hardy covered the Korean War, winning the Missouri Pictures of the Year International Award for "Inchon". Tom Hopkinson, the editor of Picture Post, lost his job as publisher when he defended the magazine's coverage of atrocities committed by South Korean troops at a concentration camp in Pusan. Cameron wrote, "I had seen Belsen, but this was worse. This terrible mob of men - convicted of nothing, un-tried, South Koreans in South Korea, suspected of being 'unreliable'." The founder of the Hulton press, Edward G. Hulton, decided to "kill" the story.
 Passage 3:Raised in Bowie, Maryland, Nichols graduated from the United States Air Force Academy in 1979. From 1989 to 1991, he was stationed at Torrejón Air Base in Spain and served in the Gulf War before being assigned to The Pentagon. In 1992, Nichols joined the Wisconsin Air National Guard and was assigned to the 128th Fighter Wing. From 1994 to 1998, he served as Operations Officer of the 176th Fighter Squadron before serving as an operations group commander at Truax Field Air National Guard Base in Madison, Wisconsin for two years. In 2000, he was named Vice Commander of the 149th Fighter Wing of the Texas Air National Guard. From 2003 until 2009, he was in command of the 149th Fighter Wing. He was named Assistant Adjutant General of the Texas Air National Guard in 2009 and stayed in that position until becoming Adjutant General of Texas in 2011.

Example Output: 1

Example Input: Question: Which town was near the camp that, until May 1942, the Germans used it to mostly kill off Jews from Belgrade and other parts of Serbia? Passage 1:William Alfred Passavant was born in 1821 in Zelienople, Pennsylvania, the third and youngest son of Phillipe Louis Passavant and Fredericka Wilhelmina Basse (nicknamed "Zelie," hence the town's name). His grandfather, Baron Dettmar Basse, born in Iserlohn in the Ruhr Valley in what was then the Grand Duchy of Hesse and later became Germany, spent a decade in Paris as a diplomat and merchant before fleeing the Napoleonic Wars and emigrating to Philadelphia and then Pittsburgh in 1801. Drawn by the prospect of religious freedom and economic opportunity, the widower Baron bought 10,000 acres along Connoquenessing Creek in Butler County, Pennsylvania, began building a wood framed castle, and founded (with Christian Buhl) a new town complete with sawmill, brickyard, and an iron furnace. He also traveled and sent glowing letters back to Germany, persuading his daughter and her new husband (a French Huguenot who fled after repeal of the Edict of Nantes) to emigrate in 1807 from Frankfurt.
 Passage 2:The 1st King's Dragoon Guards was a cavalry regiment in the British Army. The regiment was raised by Sir John Lanier in 1685 as the 2nd Queen's Regiment of Horse, named in honour of Queen Mary, consort of King James II. It was renamed the 2nd King's Own Regiment of Horse in 1714 in honour of George I. The regiment attained the title 1st King's Dragoon Guards in 1751. The regiment served as horse cavalry until 1937 when it was mechanised with light tanks. The regiment became part of the Royal Armoured Corps in 1939. After service in the First World War and the Second World War, the regiment amalgamated with the 2nd Dragoon Guards (Queen's Bays) in 1959 to form the 1st The Queen's Dragoon Guards.
 Passage 3:After the April war of 1941 when Germany and its allies occupied and partitioned the Kingdom of Yugoslavia, entire Syrmia region (including the left bank of the Sava) became part of the Independent State of Croatia where they set the Ustaše regime. Nazi secret police, Gestapo, took over Sajmište. They encircled it with several rings of barbed wire turning it into what they referred to as "collection center" – a euphemism for a prison. It eventually became a concentration camp. Until May 1942 Germans used Sajmište concentration camp to mostly kill off Jews from Belgrade and other parts of Serbia. From April 1942 onwards, Serbian prisoners were transported in from Jasenovac and Stara Gradiška concentration camps run by ISC Croatian Ustaše. Partisans captured throughout Serbia were also sent to Sajmište. Detainees were also sent in from other parts of Yugoslavia, especially Serbs after major German offensives on briefly liberated territories. Executions of captured prisoners lasted as long as the camp existed. During their heavy “Easter bombing” of Belgrade, Allied aircraft bombed Sajmište on 17 April 1944, killing some 100 inmates and inflicting heavy damage on the camp itself, destroying all the buildings except for the Spasić pavilion and the Central tower..

Example Output: 3

Example Input: Question: How did the frontal sexual position depicted frequently in early Sumerian art get its name? Passage 1:A vast number of artifacts have been discovered from ancient Mesopotamia depicting explicit heterosexual sex. Glyptic art from the Sumerian Early Dynastic Period frequently shows scenes of frontal sex in the missionary position. In Mesopotamian votive plagues from the early second millennium BC, the man is usually shown entering the woman from behind while she bends over, drinking beer through a straw. Middle Assyrian lead votive figurines often represent the man standing and penetrating the woman as she rests on top of an altar. Scholars have traditionally interpreted all these depictions as scenes of ritual sex, but they are more likely to be associated with the cult of Inanna, the goddess of sex and prostitution. Many sexually explicit images were found in the temple of Inanna at Assur, which also contained models of male and female sexual organs, including stone phalli, which may have been worn around the neck as an amulet or used to decorate cult statues, and clay models of the female vulva.
 Passage 2:He had hoped to redshirt during the 2011 season, which was his freshman year, so that he could add size. He played in 2011 as a true freshman and got off to a modest start. Lockett only recorded four receptions for 50 yards, three rushes for nine yards, one kickoff return for ten yards, and two punt returns for a total of 13 yards in his first five games through October 8. Things started to turn around on October 15 when he posted a 100-yard return of a kickoff for a touchdown against Texas Tech. Over the ensuing weeks, he earned numerous Big 12 Conference honors for the 2011 team, including becoming a two-time Big 12 Special Teams Player of the Week. His first Player of the Week recognition came on October 24 after he produced a 251-yard all-purpose yards performance on October 22 against Kansas in the Governor's Cup that included posting a 97-yard kickoff return touchdown while becoming the first player in school history to return kickoffs for touchdowns in consecutive games and having a career-high five-reception 110-yard receiving day. His other Player of the Week recognition that season came on November 7 after a 315-yard all-purpose yard November 5 game against Oklahoma State that included an 80-yard kickoff return and three rushes for 84 yards as well as three receptions for 32 yards and a touchdown. Due to what was at first an undisclosed injury, he did not play in the final three games of Kansas State's regular season. Later, the injury was determined to be a lacerated kidney. In the four games before the injury, he had at least three receptions and 125 all-purpose yards in each game.
 Passage 3:During Catlett's lifetime she received numerous awards and recognitions. These include First Prize at the 1940 American Negro Exposition in Chicago, induction into the Salón de la Plástica Mexicana in 1956, the Distinguished Alumni Award from the University of Iowa in 1996, a 1998 50-year traveling retrospective of her work sponsored by the Newberger Museum of Art at Purchase College, a NAACP Image Award in 2009, and a joint tribute after her death held by the Salón de la Plástica Mexicana and the Instituto Politécnico Nacional in 2013. Others include an award from the Women's Caucus for Art, the Art Institute of Chicago Legends and Legacy Award, Elizabeth Catlett Week in Berkeley, Elizabeth Catlett Day in Cleveland, honorary citizenship of New Orleans, honorary doctorates from Pace University and Carnegie Mellon, and the International Sculpture Center's Lifetime Achievement Award in contemporary sculpture. The Taller de Gráfica Popular won an international peace prize in part because of her achievements . She received a Candace Award from the National Coalition of 100 Black Women in 1991.

Example Output:
1