Instructions: 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.
Input: Question: What country were US tanks still rolling toward in March of 2003? Passage 1:Wilson was the son of Alexander Robertson Wilson, writer (or solicitor) and town clerk of the then Royal and Ancient Burgh of Irvine, and Elizabeth Wylie Murray. He was born in Irvine. He was named for a great-grandfather, John Gray, who was town clerk of Ayr, and joint secretary of the first Burns festival there in 1844; an uncle 'John Gray Wilson' had died at the age of 14. The John Gray Wilson of this article, the Sheriff, was educated at Irvine Royal Academy; the Edinburgh Academy, where he was Dux (leading scholar) in 1935; and, as an Open Classics Scholar, at Oriel College, Oxford where he graduated B.A.. In the long vacation of 1936 he contracted polio, which left him with a weakened leg and chest, and contributed to his early death. (At the time of this enforced absence, his name was used by a fantasist claiming to have been an aviator during the Spanish Civil War.) After Oxford, he attended Edinburgh University where he received the degree of Bachelor of Laws. In 1943 he married Nan MacAuslan, herself active in the liberal Party and later awarded a PhD by the University of Edinburgh for a Thesis on the Social Anthropology of the Faculty of Advocates. They had three sons.
 Passage 2:MEED was launched in 1957. When Rafiq Hariri drew up plans to rebuild a war-shattered Lebanon, MEED met the prime minister and asked him to explain them. When Colonel Gaddafi unveiled the first part of his Great Manmade River, MEED took a front-row seat at the ceremony and quizzed the engineers. While US tanks were still rolling towards Baghdad in March 2003, MEED obtained plans from Washington that described how the US was hoping to rebuild the country. Three months before going public, MEED revealed DP World's IPO plans. Abdalla el-Badri announced Opec's potential move from US dollar to euro pricing to MEED. MEED broke news of Saudi Arabia moving ahead with plans for a Mile-High Tower in Jeddah – which would make it the tallest tower in the world – and Nakheel's plans to create a tower over one kilometre high (then called Nakheel Tower, later announced as Dubai's Harbour Tower) to trump Emaar's Burj Khalifa.
 Passage 3:Balsdon skips one of the top teams in Ontario. As of 2019, Balsdon has played in 13 provincial championships. He first played at the provincials in 1999, playing for John Base (4th place). He left the Base rink in 2000 to form his own team. He qualified again in 2002 as a skip, again finishing 4th. His next provincial was the 2005 Ontario Kia Cup, where his rink finished 4th once again. He qualified again in 2007, where he once again finished 4th at the 2007 TSC Stores Tankard. His next provincial in 2011 would be more successful. At the 2011 provincial championship, he lost to the (then) five-time defending champion Glenn Howard rink in the final. At the time, Balsdon represented the one-sheet Loonie Curling Club located in Chaffeys Locks, Ontario, north of Kingston. Despite representing the club, he had only played there once. The Loonie was built in 2008, and Balsdon has represented it twice. Balsdon returned to the Tankard in 2012, finishing tied for 8th. Despite battling an injury for much of the season, Baldson won his first provincial men's title in 2014, when his rink defeated Glenn Howard in the Ontario final. The win broke Howard's record eight-year provincial championship streak. The team was named after third Mark Bice who had skipped the team through zone and regional play due to Baldson recovering from a broken rib. However, Balsdon would skip the team in the provincial championship. The team represented Ontario at the 2014 Tim Hortons Brier, where they went 5-6 in the round robin, missing the playoffs. The following season, at the 2015 Ontario Tankard, Balsdon and his rink lost in a tie breaker. Following the season, the team broke up.

Output:
2