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: Which of the lines that uses the A-series trains began first? Passage 1:NSB Class 73 () is a class of 22 electric multiple units built by Adtranz for the Norwegian State Railways. The four-car trains were modifications of Class 71, which was again based on the Swedish X2. The A-series consists of 16 intercity trains; they were delivered in 1999 and 2000 and are used on the Bergen, Dovre and Sørland Lines. The intercity service was branded as Signatur until 2003. The B-series consists of six regional trains delivered in 2002 and used on the Østfold Line. The regional trains were originally part of the Agenda concept. The trains have a power output of and a maximum speed of . They have an overall length of and have a capacity for 208 seated passengers in the A-series and 250 in the B-series. The trains have a tilting mechanism allowing for faster travel through curves.
 Passage 2:Sculptures of Tubman have been placed in several American cities. A 1993 Underground Railroad memorial fashioned by Ed Dwight in Battle Creek, Michigan features Tubman leading a group of slaves to freedom. In 1995, sculptor Jane DeDecker created a statue of Tubman leading a child, which was placed in Mesa, Arizona. Copies of DeDecker's statue were subsequently installed in several other cities, including one at Brenau University in Gainesville, Georgia. It was the first statue honoring Tubman at an institution in the Old South. The city of Boston commissioned Step on Board, a 10-foot-tall bronze sculpture by artist Fern Cunningham placed at the entrance to Harriet Tubman Park in 1999. It was the first memorial to a woman on city-owned land. Swing Low, a 13-foot statue of Tubman by Alison Saar, was erected in Manhattan in 2008. In 2009, Salisbury University in Salisbury, Maryland unveiled a statue created by James Hill, an arts professor at the university. It was the first sculpture of Tubman placed in the region where she was born.
 Passage 3:Creditsafe was founded in 1997 in Oslo, Norway with the idea of using the then emerging technology of the internet to supply business information to a market of smaller and medium-sized businesses by selling over the telephone and delivering reports over the internet. Following the Norwegian launch Creditsafe established an office in Gothenburg Sweden in 1998 before moving to the UK in 2000. Creditsafe re-located the UK sales operation to Caerphilly in South Wales in 2002. In 2006 Creditsafe France was launched in Roubaix near Lille. Additional entities were later launched in Dublin in Ireland in 2007, The Hague in the Netherlands in 2008, Berlin, Germany in 2010, Brussels, Belgium in 2011 and Turin in Italy in 2013. Creditsafe moved outside Europe in 2012 with the founding of Creditsafe United States in Allentown, Pennsylvania. Since launching in the USA, Creditsafe have now increased its US workforce by opening a new office in Tempe, Arizona Creditsafe established a shared service centre in Cardiff Bay, Wales in 2006 which has grown to support the sales operations around the world. In September 2016, Creditsafe set up its own operation in Japan. has its offices in Fukuoka and Tokyo

Example Output: 1

Example Input: Question: Which team won the tournament that Harvard was eliminated from by UNC in 2015? Passage 1:Bundrick first worked with Pete Townshend in 1977 when he performed on Rough Mix, Townshend's solo collaboration with Ronnie Lane, former bass player for Small Faces and Faces. He was invited to play on the Who's album Who Are You (1978), but broke his arm falling out of a taxi at the studio door and was unable to participate in recording sessions. Bundrick toured with The Who from 1979 to 1981 along with drummer Kenney Jones and played on their album Face Dances (1981), then briefly parted with the band during the recording of It's Hard (1982) and the subsequent tour. Bundrick later rejoined the band performing with them at Live Aid in 1985 and played live with them until 2012.
 Passage 2:The book discusses four prehistoric migrations in India. The book mentions that the Harappans were a mixture of Zagros agriculturists and First Indians, a wave of migrants who came from Africa into Arabia and then reached India around 65,000 years ago. Citing recent DNA evidence, the book traces the subsequent large migrations of anatomically modern humans into India—of agriculturalists from Iran between 7000 and 3000 BCE and Indo-European languages speaking pastoralists from the Central Asian Steppe (Aryans) between 2000 and 1000 BCE, among others. Tony Joseph used pizza as a metaphor to explain the break-up of subcontinental society. The book also discusses about similarities and differences between Indus Valley civilization and early Vedic civilization. The book mentions that ‘Aryan’ culture was most likely the result of interaction, adoption and adaptation among those who brought Indo-European languages to India and those who were already well-settled inhabitants of the region, and that Sanskrit and Vedas developed in the Indian subcontinent. Various tribes like the Andamanese and the Semang (Malay Peninsula), the Mani (Thailand) and the Aeta people (the Philippines) were the earliest inhabitants of Southeast Asia. According to Joseph, Proto-Dravidian is related to the Elamitic language of Iran. Caste system in India is a recent social system, reflected in sharply reduced inter-marriage (endogamy) and genetic mixing after 100 AD. This book also takes into account the path-breaking DNA research and findings from geneticist David Reich's research.
 Passage 3:Harvard Crimson men's basketball program represents intercollegiate men's basketball at Harvard University. The team currently competes in the Ivy League in Division I of the National Collegiate Athletic Association (NCAA) and plays home games at the Lavietes Pavilion in Boston, Massachusetts. The team appeared in the NCAA Division I Men's Basketball Tournament in 2014, where Harvard upset 5-seed Cincinnati 61–57 before being eliminated in the round of 32 by 4-seed Michigan State by a score of 80–73. In 2015, Harvard tied with Yale for the Ivy title with an 11–3 league record. Despite having lost to Yale 62–52 at Lavietes Pavilion on March 6, 2015, just eight days later Harvard won a playoff between the two at the Palestra in Philadelphia to determine the Ivy League's NCAA automatic bid by a score of 53–51. Harvard thereby achieved its fourth straight NCAA Tournament appearance while preventing Yale from reaching the NCAA Tournament for the first time in 53 years. Harvard was eliminated from the 2015 NCAA Tournament by UNC by a score of 67–65 after leading with under one minute to play in the game. 

Example Output: 3

Example Input: Question: When did the expedition that John Colter was apart of in 1807 begin? Passage 1:Bobby Ross coached the Chargers from 1992 to 1996, and is the only coach to win awards while coaching the Chargers. In 1992, Ross won the Pro Football Weekly NFL Coach of the Year, the Maxwell Football Club NFL Coach of the Year and the UPI NFL Coach of the Year. The Pro Football Weekly NFL Coach of the Year is presented annually by various news and sports organizations to the National Football League (NFL) head coach who has done the most outstanding job of working with the talent he has at his disposal. The Maxwell Football Club NFL Coach of the Year was created in 1989 and is originally titled the Earle "Greasy" Neale Award for Professional Coach of the Year. The United Press International (UPI) NFL Coach of the Year award was first presented in 1955. Before the AFL-NFL merger, an award was also given to the most outstanding coach from the AFL. When the leagues merged in 1970, separate awards were given to the best coaches from the AFC and NFC conferences. The UPI discontinued the awards after 1996.
 Passage 2:Suffocation was formed in 1988 on Long Island, New York, by vocalist Frank Mullen, guitarists Guy Marchais and Todd German, bassist Josh Barohn, and an unknown drummer. By 1990, the band had hired guitarists Terrance Hobbs and Doug Cerrito along with drummer Mike Smith, who were members of a local band called Mortuary, which had already disbanded. The quintet was mainly influenced by fellow American death metal bands as well as the British band Napalm Death and Brazilian Sepultura. Smith commented on meeting Hobbs for the first time: "That's where I first noticed, 'Wow, theres another black guy playing this kind of stuff'". The band's first EP, Human Waste, was released through Relapse Records in 1991. The full-length debut album, Effigy of the Forgotten, recorded by producer Scott Burns at Tampa's Morrisound Studios and released by Roadrunner Records the same year. In July 1991, Barohn was replaced by Chris Richards, as the album became substantially influential in extreme metal music.
 Passage 3:Europeans may have ventured into the northern sections of the state in the late 18th century. Most of the southern part of modern-day Wyoming was nominally claimed by Spain and Mexico until the 1830s, but they had no presence. John Colter, a member of the Lewis and Clark Expedition, was probably the first American to enter the region in 1807. His reports of thermal activity in the Yellowstone area were considered at the time to be fictional. Robert Stuart and a party of five men returning from Astoria, Oregon discovered South Pass in 1812. The route was later followed by the Oregon Trail. In 1850, Jim Bridger located what is now known as Bridger Pass, which was later used by both the Union Pacific Railroad in 1868, and in the 20th century by Interstate 80. Bridger also explored the Yellowstone region and like Colter, most of his reports on that region of the state were considered at the time to be tall tales. During the early 19th century, fur trappers known as mountain men flocked to the mountains of western Wyoming in search of beaver. In 1824, the first mountain man rendezvous was held in Wyoming. The gatherings continued annually until 1840, with the majority of them held within Wyoming territory.

Example Output:
3