Given the task definition and input, reply with output. 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: How long was Heisman head coach at Auburn? Passage 1:Stanford Talisman is a student a cappella group at Stanford University, dedicated to sharing stories through music. Started in 1990 by Stanford student Joseph Pigato, their roots are in music from South Africa and the African diaspora, but they have since broadened their horizons to include music from all over the world. They perform not only locally in the greater San Francisco Bay Area but also around the world. Their most recent tour was to Hawai'i in the spring of 2018. The group has also traveled to South Africa (2016) and the American Southwest (2017). The group won the 1997 ICCA competition and notable performances include the 1996 Olympic Games, the White House, with 10-time Grammy award winner Bobby McFerrin in 2005 and 2019, with Seal in 2009, with Joan Baez in 2019, annually at Stanford Graduation Baccalaureate, and their sold-out 25th Anniversary Show in Bing Concert Hall in 2015.
Passage 2:He was born in Kalgoorlie to miner James Wilson and Barbara Jean McKenzie. He attended local public schools and became a teacher, graduating in 1955. After a period teaching at Mount Barker, he trained for the Anglican clergy from 1959 to 1961. From 1961 to 1965 he was the assistant priest for the Scarborough parish, and from 1965 to 1967 he taught in the United Kingdom. On 24 August 1968, he married Angela Joy Hankin, with whom he would have two sons. From 1969 he was an Anglican clergyman at Balga. In 1977 he was elected to the Western Australian Legislative Assembly as the Labor member for Dianella; he would represent this seat until 1983, Nollamara until 1989, and then Dianella again until 1993. He was the first clergyman elected to the Parliament of Western Australia following a change to the constitution. In 1981 he became Shadow Minister for Housing, Community Welfare and Youth, Sport and Recreation. He was appointed Minister for Housing, Youth and Community Services in 1983; he held this portfolio under various names until 1988, when he became Minister for Health. He left the ministry in 1992 and lost his seat at the following year's election; soon after he resigned from the Labor Party altogether.
Passage 3:During those two years Warner also played two games against John Heisman, another future coaching legend. Heisman was the head coach at Auburn University, and they faced each other in the 1895 and 1896 games of the "Deep South's Oldest Rivalry," an annual confrontation which has continued to the present day. In 1895, the Auburn Tigers defeated the Bulldogs 126. The Auburn team was led by quarterback Reynolds "Tick" Tichenor, known for his punt returns. Tichenor had executed the first "hidden-ball trick" in an earlier Auburn game against Vanderbilt, and used it again against Georgia. The next year, Tichenor faced Georgia's Richard Von Albade Gammon, a star quarterback in his first year under Warner. Both quarterbacks played well and, unlike the previous year, Warner's team won 166. The second touchdown came right after the first onside kick in the South.
3