You will be given a definition of a task first, then some input of the task.
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.

Question: Was the University of Chicago teaching more students than Columbia University the year Isabel Wasson married Theron Wasson? Passage 1:1999: Britney Spears was the big winner of the night winning four awards, including Best New Act and Best Song for "...Baby One More Time". She also performed during the ceremony, entertaining the crowd with a medley of her songs "...Baby One More Time" and "(You Drive Me) Crazy". The Free Your Mind Award, which honours an individual or organisation for aiding in humanitarian efforts and fighting prejudice, was given to Bono for his world peace work. Puff Daddy performed "My Best Friend" backed by a full gospel choir, followed by Iggy Pop, who stagedived into the crowd during the track "Lust for Life". Whitney Houston sang a medley of "Get It Back" and "My Love Is Your Love", while Mariah Carey performed "Heartbreaker". Marilyn Manson, who wore nothing but a G-string, closed the show with a performance of "Rock Is Dead".
 Passage 2:Wasson was born Isabel Deming Bassett in Brooklyn, NY on January 11, 1897, daughter of urban planner Edward Bassett and Annie Preston Bassett, and sister of inventor and engineer Preston Bassett. Wasson graduated Phi Beta Kappa from Wellesley College in 1918, majoring in history so she could take a wide range of science courses. She took classes in geology after graduation at the University of Chicago and the Massachusetts Institute of Technology. She met her future husband, petroleum geologist Theron Wasson, whom she married in 1920, while working towards a master's degree in geology at Columbia University, which she finished in 1934. They had three children: Elizabeth W. Bergstrom, a biologist; Edward B. Wasson, a petroleum geologist; and Anne Harney Gallagher, an art historian. Wasson worked as a petroleum geologist in her husband's office at the Pure Oil Company from the early 1920s until 1928. She published two scholarly articles on geology, one co-authored with her husband about an oil field discovered by Pure Oil in 1914, and another by herself about the ages of rock formations in Ohio and new terminology for them; the latter was cited in a number of other papers and a recent book. After 1928 she spent over 50 years in River Forest, IL, teaching science in the local public schools, lecturing, bird watching (ornithology), and mentoring generations of young naturalists. She was quoted in this 1986 Chicago Tribune article as an expert on local geology at age 89. She was honored for her contributions to local history in 1982 when the Wasson Room was named after her in a local school to hold local history resources. Her interests included archaeology; she discovered a Native American religious mound in Thatcher Woods, near her house in River Forest, in the 1930s. An article about her discovery called her "the one who started the environmental education movement in America back in the 1920s and '30s." Theron and Isabel divorced in 1953 and she did not remarry. From 1953-1954, Wasson served as President of the Chicago Ornithological Society. Wasson also taught classes at the Morton Arboretum in Lisle, Illinois. She died in La Grange Park, IL, in 1994.
 Passage 3:Born in Bedford on 22 September 1780, John Hensman was educated at Bedford School and at Corpus Christi College, Cambridge, where he matriculated as an Exhibitioner in February 1797. He graduated as ninth Wrangler at the University of Cambridge in 1801 and was elected as a Fellow of Corpus Christi College, Cambridge. He was ordained in 1803, and was appointed as Curate of Wraxall, Somerset. In 1809 he was appointed as Curate of Clifton, Bristol. He was instrumental in the rebuilding of Clifton parish church, which was consecrated on 12 August 1822. He was then the moving force behind the building of the Church of Holy Trinity, Hotwells, which was consecrated on 10 November 1830. He held the incumbency of the church until 1844, when he was granted the perpetual curacy of Christ Church, Clifton Down, and he oversaw the rebuilding of that church. He was instituted to the living of Clifton, Bristol, in 1847, and oversaw the building of St Paul's Church, Clifton, Bristol, consecrated in 1853, and St Peter’s Church, Clifton, consecrated in 1855.

Output:
2