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: Which of the two universities Windschuttle attended had a larger student population? Passage 1:After education at Canterbury Boys' High School (where he was a contemporary of former Liberal Australian prime minister John Howard), Windschuttle was a journalist on newspapers and magazines in Sydney. He completed a BA (first class honours in history) at the University of Sydney in 1969, and an MA (honours in politics) at Macquarie University in 1978. He enrolled in a PhD but did not submit it; instead he published it under the title The Media with Penguin Books. In 1973, he became a tutor in Australian history at the University of New South Wales (UNSW). Between 1977 and 1981, Windschuttle was lecturer in Australian history and in journalism at the New South Wales Institute of Technology (now the University of Technology, Sydney) before returning to UNSW in 1983 as lecturer/senior lecturer in social policy. He resigned from UNSW in 1993 and since then he has been publisher of Macleay Press and a regular visiting and guest lecturer on history and historiography at American universities. In June 2006, he was appointed to the Board of the Australian Broadcasting Corporation (ABC), Australia's non-commercial public broadcaster.
Passage 2:Quinn emigrated from Canada with a falsified passport and entered the adult entertainment industry in the late 1980s, while she was underage by using a fake ID. She began stripping in Canada when she was 14. Two years later she met pornographic actress Erica Boyer and moved to Los Angeles with her. Quinn began performing in adult films at the age of 16 after Boyer introduced her to agent Jim South. Quinn misrepresented her birth year as 1968, which would have made her 22 at the time of her adult film debut. Her first scene was in the film Space Virgins, and it was a five-person group sex scene with two men and two other women, besides Quinn. She won the 1991 AVN Award for Best Group Sex Scene - Video alongside Sunny McKay & Rocco Siffredi for their performance in Buttman's Ultimate Workout. By November 1991 she had appeared in approximately 100 adult films, 60 of which were shot while she was still a minor.
Passage 3:Charles I is supposed to have created him a baronet 4 May 1645. Of this creation, the first of a physician to that rank, no record exists, but the accurate Le Neve did not doubt the fact, and explained the absence of enrolment. He claimed to have been Physician-General to the army of Charles I. With his friend Walter Charleton, Greaves became travelling physician to Charles II, but settled in London in 1653, and was admitted a fellow of the College of Physicians 18 October 1657. He delivered the Harveian oration at the College of Physicians 25 July 1661 (London, 1667, 4to), of which the original manuscript is in the British Museum (Sloane 302). He says that before Harvey the source of the circulation was as unknown as that of the Nile, and compares England to a heart, whence the knowledge of the circulation was driven forth to other lands. He became physician in ordinary to Charles II, and owned the lands of St Leonard's Forest in Sussex, including that part which became Leonardslee. He married Alicia Nevett (16241684), widow of Peter Calf (d. 1668). Greaves lived in Covent Garden, died there 11 Nov. 1680, and was buried in the church of St. Paul's, Covent Garden.

Ex Output:
1

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: How many year's after the creation of Yale did Henry M. Hoenigswald serve as a research assistant? Passage 1:He was educated in the German Gymnasium, where he learned the classical languages, and trained as an Indo-Europeanist and a historical and comparative linguist in universities in Munich, Zurich, Padua, and Florence. His refugee status compelled these moves (his grandparents were Jewish, and by 1933 Jews were forbidden to attend German universities). In 1939 he escaped to the United States, where he was at first a research assistant at Yale. He taught at the University of Pennsylvania from 1948 until his retirement in 1985. He was a member of the Linguistic Society of America, of which he was elected President in 1958, and a member of the American Philosophical Society for more than 30 years. He was elected to the National Academy of Sciences. He spent a year at Oxford in 1976 and was elected a Corresponding Fellow of the British Academy in 1986.
Passage 2:For playing a murdered activist in the 2005 thriller The Constant Gardener, she won the Academy Award for Best Supporting Actress, and for playing Blanche DuBois in a 2009 revival of A Streetcar Named Desire, she won the Laurence Olivier Award for Best Actress. In the 2010s, Weisz continued to star in big-budget films such as the action film The Bourne Legacy (2012) and the fantasy film Oz the Great and Powerful (2013), and gained acclaim for her performances in the independent films The Deep Blue Sea (2011) and The Favourite (2018). For portraying Sarah Churchill in the latter, she won the BAFTA Award for Best Actress in a Supporting Role and received another Academy Award nomination.
Passage 3:Philadelphia sports teams had enjoyed a run of success. Major League Baseball's Phillies won the 1980 World Series and the 1983 National League pennant; the National Hockey League's Flyers won back-to-back Stanley Cups in and , and appeared in the finals in , , , and ; the National Football League's Eagles appeared in Super Bowl XV following the 1980 season, losing to the Oakland Raiders; and the National Basketball Association's 76ers swept the 1983 NBA Finals, as well as making the finals in , , and . Before 1980, the Phillies had appeared in only two other World Series, in and , and the Eagles had won no NFC conference championships since the 1966 agreement that had created the Super Bowl, while the 76ers won NBA titles in both Philadelphia and in their previous incarnation, the Syracuse Nationals. The Villanova Wildcats won the 1985 NCAA Division I Men's Basketball tournament, in one of the most famous upsets in sports history. Construction on One Liberty Place began in 1985, two years after the last championship season in Philadelphia.

Ex Output:
1