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: 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.


Ex Output:
2


Ex Input:
Question: Which Russia club that Laizans played for after he left CSKA Moscow had won championship? Passage 1:The Red Rovers, commonly referred to as the Alabama Red Rovers, was a filibuster force organized in Courtland, Alabama to support the Texas Revolution. Raised by doctor and planter Jack Shackelford in November 1835, the unit took its name from the red jeans of their uniforms and was outfitted with equipment from Alabama state arsenal. Consisting of some 70 men, nearly half the men in Courtland, the unit remained encamped until December 12 before setting out for Texas by way of New Orleans. After arriving at Lavaca Bay on January 19, 1836 and being accepted into Texas service on February 3, the Red Rovers were put under command of Colonel James W. Fannin. They fought in the Battle of Coleto on March 19–20, performing well, but the Texians were overrun and ultimately forced to surrender
 Passage 2:Laizāns started his career with Skonto FC and moved to the Russian team CSKA Moscow in 2000. His team managed to win the UEFA Cup. After leaving CSKA Laizāns kept playing in Russia for FC Torpedo Moscow, FC Rostov, FC Kuban Krasnodar and FC Shinnik Yaroslavl. In 2009, he came back to Latvia, signing for Olimps/RFS, later also playing for FK Ventspils and participating in the UEFA Europa League group stages. Laizāns signed for Skonto FC at the start of 2010, but left the team soon - he joined the Russian team FC Salyut Belgorod. At the end of the season he was released, and he returned to Skonto FC once again. Playing 14 matches and scoring 2 goals, he once again left Riga, this time in July 2011 for Fakel Voronezh, playing in the Russian First League. After a season spent in Russia, Juris once again joined Skonto on 30 August 2012. Laizāns played for Skonto till April 2014, afterwards ending his professional footballer's career.
 Passage 3:Born in Spruce Grove, Alberta, Kuhl was elected under the Social Credit banner to the House of Commons of Canada in the 1935 Canadian federal election. He defeated incumbent Member of Parliament and former Alberta Premier Charles Stewart to win the new Jasper—Edson electoral district. Kuhl would stand for re-election in the 1940 Canadian federal election this time under the New Democracy banner. He was re-elected defeating 3 other candidates winning by less than one hundred votes. Kuhl would stand for re-election for a 3rd term this time once again under the Social Credit banner he would be re-elected in the 1945 Canadian federal election. Kuhl would be defeated in the 1949 Canadian federal election by Liberal candidate John William Welbourn.


Ex Output:
2


Ex Input:
Question: How many sales did Sean Paul's third album make? Passage 1:The You Can Play Advisory Board includes Brian Burke, ESPN SportsCenter anchor John Buccigross, Miami University head hockey coach Enrico Blasi, Kraft Sports Group Vice President of Customer Marketing & Strategy Jessica Gelman, ESPN columnist LZ Granderson, Olympic soccer player Angela Hucles, Be The Change president and CEO Kevin Jennings, Andy Miele of the Grand Rapids Griffins/Detroit Red Wings, sports psychologist Dana Sinclair, AEG Vice President Kelly Staley, professional soccer player David Testo, Chicago Blackhawks forward Tommy Wingels, and Golden State Warriors president Rick Welts. In February 2013, the Advisory Board added transgender activist and baseball analyst Christina Kahrl and former NFL players Wade Davis and Esera Tuaolo. Miele and Wingels were the founding donors of You Can Play.
 Passage 2:Ayub Khan joined the Royal Military College, Sandhurst as a trainee in July 1926. He was commissioned as a 2nd Lt. on 2 February 1928 in the 1/14th Punjab Regiment (1st Battalion of the 14th Punjab Regiment) of the British Indian Army – before this he was attached to the Royal Fusiliers. Amongst those who passed out with him was the future chief of army staff of the Indian Army, General Joyanto Nath Chaudhuri who served as the army chief from 1962 to 1966 while Ayub was the president of Pakistan during the time. After the standard probationary period of service in the British Army, he was appointed to the British Indian Army on 10 April 1929, joining the 1/14th Punjab Regiment Sherdils, now known as 5th Punjab Regiment.
 Passage 3:"(When You Gonna) Give It Up to Me" (known as "Give It Up to Me" in its solo version) is a reggae–dancehall song written by Sean Paul for his third album The Trinity (2005). The single meant to be released after "Temperature" was "Breakout", but was switched to "Give It Up To Me" to promote the film Step Up (2006). It is the fourth U.S. single taken from the album and the fifth UK single. It was a split single with "Never Gonna Be the Same", which was released outside the North America in June 2006 but it was finally released worldwide in October 2006. The version released as a single (the one called "(When You Gonna) Give It Up to Me", in order to differ from the album version) was a collaboration with Keyshia Cole and the song was a single from the Step Up film soundtrack. Despite The Trinity being re-released just before the single release, the version with Keyshia Cole did not make the album, despite a "radio version" being added.


Ex Output:

3