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: Where was the prime minister who survived a vote of confidence after the 1906 election born? Passage 1:Heftye served one term in Kristiania city council, from 1907 to 1910. On 19 March 1908, when the Knudsen's First Cabinet assumed office, he was appointed for his second term as Minister of Defence. He resigned already on 10 April the same year, because Prime Minister Gunnar Knudsen refused to seek a vote of confidence in Parliament, a form of investiture. This was a problematic question at that time, as Norway had made important steps towards parliamentarism, but not formalized the process with change of government. Former Prime Minister Christian Michelsen had asked for a vote of confidence following the 1906 general election, and survived. When he retired from politics in 1907 due to illness, Jørgen Løvland took over, but he was felled in 1908. In early 1908, the Liberal Party had evicted 24 legislators who supported Christian Michelsen and the endeavors of the Coalition Party (later leading to the creation of the Liberal Left Party), and hence, when Knudsen took over, he had no way of achieving a parliamentary majority. In that situation he could not expect to survive a vote of confidence. It has been said that parliamentarism works best in a two-party system, which Norway did not have at that time, and has never had since, although the Coalition Party tried to implement it. On the other hand, Knudsen and his cabinet resigned following the 1909 general election, which the Liberal Party lost. Such an action is not required by law, but if not carried through, the cabinet would most likely face a vote of no confidence.
 Passage 2:Baker grew up in Shreveport, Louisiana, and attended Oklahoma State University. He was drafted by the Twins in the second round of the 2003 amateur entry draft and reached the major leagues in 2005. In 2006, he made their starting rotation out of Spring training but struggled and was sent to the minor leagues for most of the rest of the season. Beginning 2007 in the minors, he was called up in May and nearly threw a perfect game on August 31. He went 11–4 in 2008 and posted a 3.45 earned run average (ERA). In 2009, Baker logged a career-high 200 innings and started the American League (AL) tiebreaker game against the Detroit Tigers which the Twins won to advance to the postseason. He had a 12–9 record in 2010 but battled injuries towards the end of the year and was left out of the Twins' postseason rotation. Injuries limited Baker in 2011 again, but he was the only Twins' pitcher to post a winning record. He missed 2012 after undergoing Tommy John surgery; this also caused him to miss most of 2013, which he spent with the Chicago Cubs. He began 2014 in the minor leagues but was later added to the Texas Rangers' roster.
 Passage 3:The tubercle effect is a phenomenon where tubercles or large 'bumps' on the leading edge of an airfoil can improve its aerodynamics. The effect, while already discovered, was analyzed extensively by Frank E. Fish et al in the early 2000 onwards. The tubercle effect works by channeling flow over the airfoil into more narrow streams, creating higher velocities. Another side effect of these channels is the reduction of flow moving over the wingtip and resulting in less parasitic drag due to wingtip vortices. Using computational modeling, it was determined that the presence of tubercles produces a delay in the angle of attack until stall, thereby increasing maximum lift and decreasing drag. Fish first discovered this effect when looking at the fins of humpback whales. These whales are the only known organisms to take advantage of the tubercle effect. It is believed that this effect allows them to be much more maneuverable in the water, allowing for easier capture of prey. The tubercles on their fins allow them to do aquatic maneuvers to catch their prey.

Example Output: 1

Example Input: Question: Where was McMahon's post-doctoral mentor from? Passage 1:Ain't She Sweet was an American album featuring four tracks recorded in Hamburg in 1961 by The Beatles featuring Tony Sheridan (except for the title song with vocal by John Lennon) and cover versions of Beatles and British Invasion-era songs recorded by the Swallows. As Atlantic Records only had rights to four Sheridan/Beatle recordings recorded by Polydor Records, they filled the rest of the album with Beatle and British Invasion cover songs. When this material was released by Atco Records, there were mono (catalogue number 33-169) and stereo (SD 33-169) editions. Atco also added additional drum overdubs to the four Sheridan cuts on top of the original drum tracks. American drummer Bernard Purdie claims to have performed overdubs of unspecified Beatles records, which would most likely have been for Ain't She Sweet, but this has never been officially confirmed.
 Passage 2:McMahon contributed to the understanding of retinal neurophysiology alongside his post-doctoral mentor, John E. Dowling. His early research focused on ion channels that mediate transmission at electrical and glutamatergic synapses and the modulatory effects of dopamine and nitric oxide on retinal synapse networks. Through studies with zebrafish he discovered that the neurotransmitter dopamine decreases the electrical coupling within horizontal cells. Further research showed that it was the increase of cAMP within the cell resulting from dopamine binding to AMPA receptor that led to this decrease in coupling. McMahon and his colleagues also demonstrated that exogenous nitric oxide and zinc can modulate AMPA receptor mediated synaptic transmission at gap junctions in hybrid bass retinal neurons.
 Passage 3:The river starts at Ralph Bice Lake (formerly Butt Lake) in northern Algonquin Provincial Park in the geographic township of Butt in the Unorganized South Part of Nipissing District. It flows south to Daisy Lake then east to Big Trout Lake. The river heads north out the lake over Big Trout Lake Dam, takes in the left tributary Tim River, flows over the Portal Rapids, Cedar Rapids, Snowshoe Rapids, Catfish Rapids, and Stacks Rapids to reach Cedar Lake, the location of the community of Brent, where it takes in the left tributary Nipissing River. The river exits the lake over a dam, heads through the Devil's Chute, reaches Radiant Lake, where it takes in the left tributary North River and right tributary Little Madawaska River, and passes through the Squirrel Rapids, Big Sawyer Rapids, Battery Rapids Cascade Rapids and White Horse Rapids, and takes in the right tributary Crow River. The river then continues through a series of rapids including the Devil's Cellar Rapids, passes the Algonquin Radio Observatory, and reaches Lake Travers. The Petawawa River enters a canyon and passes through numerous rapids including the Big Thompson Rapids, Little Thompson Rapids, Grillade Rapids, Crooked Chute, Rollway Rapids, The Natch, Schooner Rapids, Five Mile Rapids to arrive at Whitson Lake adjacent to the Petawawa Hills. It leaves Algonquin Provincial Park and enters the municipality of Laurentian Hills in Renfrew County, continues southeast past CFB Petawawa, passes through the Crooked Rapids, Race Horse Rapids, White Horse Rapids and Halfmile Rapids, and reaches Lac du Bois Dur, where it takes in the right tributary Barron River. The river enters the town of Petawawa, heads under Ontario Highway 17, through the Big Eddy Rapids, under the Canadian Pacific Railway main line, and empties into Black Bay on the Ottawa River.

Example Output: 2

Example Input: Question: How old was the person Glen's mom was friends with when he died? Passage 1:Actor Jason Flemyng was cast as Quatermass, with long-time Kneale admirer Mark Gatiss as Paterson, Andrew Tiernan as Carroon, Indira Varma as his wife Judith, David Tennant as Briscoe, Adrian Bower as Fullalove and Adrian Dunbar as Lomax—now a Ministry of Defence official rather than a policeman. Isla Blair was cast as Home Secretary Margaret Blaker, a combination of parts of Lomax's character and two officials from the original serial, and she brought to rehearsals a photograph of her husband Julian Glover on the set of the 1967 film version of Quatermass and the Pit. Blair stated that she was delighted to be joining "the Quatermass club".
 Passage 2:Born in Philadelphia, Day studied at the Jacobs School of Music at Indiana University and at the Curtis Institute of Music where she was a pupil of Margaret Harshaw. She placed third in the finals of the Metropolitan Opera National Council Auditions in 1973, which led to her debut performance at the Metropolitan Opera House on March 25, 1973 singing "Come scoglio" from Così fan tutte and "Song to the Moon" from Rusalka. She made her professional opera debut in 1972 with the Pennsylvania Opera Company as Violetta in La traviata. That same year she was the soprano soloist in Verdi's Requiem with the Mendelssohn Club. In 1973 she portrayed Mimi in La bohème and Violetta with the Little Lyric Opera Company in Philadelphia. In 1974 she made her debut with the Philadelphia Lyric Opera Company as Nella in Gianni Schicchi.
 Passage 3:Marla grew up on the South Side of Chicago, the daughter of Dell Glen (American-Jamaican) and Cortez Glen (Mexican-American). Glen's father was a blues guitarist, her grandmother a gospel singer, and her mother was friends with the blues guitarist B.B. King. Her mother Dell graduated from the University of Chicago and went on to become a successful banker who worked for Merrill Lynch. Glen's father, an American patriot who joined the military at a young age, became an engineer based in Frankfurt, Germany. Like many other children in Chicago's historic Bronzeville neighborhood (also known as the Black Metropolis) who received gifts and inspiration from folks like Muddy Waters and BB King, Marla was given a toy harmonica as a child, and her musical talent became immediately apparent. She was only 11 years old when she wrote her first song, "Repertoire", a title that has won three gold records and one platinum, and appears on her 1996 release, Love and Respect.

Example Output:
3