Definition: 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: How many teams were in the same conference as the Redbirds? Passage 1:Shaukat Aziz (; born 6 March 1949) is a Pakistani economist and financier who served as 17th Prime Minister of Pakistan from 20 August 2004 to 15 November 2007, as well as the Finance Minister of Pakistan from 6 November 1999 to 15 November 2007. During his childhood he studied at St Patrick's High School, Karachi. Aziz graduated from the Institute of Business Administration in Karachi, and joined the corporate staff of the CitiBank Pakistan in 1969. He served in various countries' governments as CitiBank financier, and became executive vice-president of Citibank in 1999. After accepting a personal request by General Pervez Musharraf, Aziz returned to Pakistan from the United States to assume the charge of the Finance Ministry as its finance minister while taking control of the country's economy. In 2004, Aziz was nominated by the Musharaf loyalist government led by Pakistan Muslim League (Q), to the position of Prime Minister after the resignation of Zafarullah Khan Jamali on 6 June 2004.
 Passage 2:The 2016–17 Illinois State Redbirds men's basketball team represented Illinois State University during the 2016–17 NCAA Division I men's basketball season. The Redbirds, led by fifth-year head coach Dan Muller, played their home games at Redbird Arena in Normal, Illinois as members of the Missouri Valley Conference. They finished the season 28–7, 17–1 to finish in a tie for first place in MVC play. They defeated Evansville and Southern Illinois in the MVC Tournament before losing to Wichita State in the championship game. As a No. 1 seed in their conference tournament who failed to win their conference tournament title, Illinois State received an automatic bid to the National Invitation Tournament as a No. 1 seed where they defeated UC Irvine in the first round before losing in the second round to UCF.
 Passage 3:Michele Crider is a graduate of Quincy Senior High School in Quincy, IL. She studied voice at Culver-Stockton College and then at the University of Iowa, where she performed her first opera role in Madama Butterfly and came to the attention of University of Iowa alumnus Simon Estes. She won the District Metropolitan Opera Auditions twice. Afterwards she left Iowa and went to Zurich where she continued her studies at the studio of the Zurich Opera House. In 1988 she was the finalist of the Luciano Pavarotti competition. In 1989 she won one of the three first prizes at the Geneva International Music Competition. This prize directly led to her engagement as Leonora in Il trovatore in Dortmund and to her participation in the International Grand Prix, which she then won. Crider has recorded Amelia in Un ballo in maschera for Teldec under Carlo Rizzi, Elena and Margherita in Mefistofele under the baton of Riccardo Muti for BMG Classics, Verdi's Requiem under Richard Hickox with the London Symphony Orchestra for Chandos Records and the role of Gerhilde in Die Walküre on Decca under Christoph von Dohnanyi.

Output:
2