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: Which of the two food technology projects Decareau worked on became a household standard appliance? Passage 1:Sunderland opened the month with a 1–0 defeat away to Manchester United on 1 September, Louis Saha scored the winner 18 minutes from full-time. Roy Keane said "I'm delighted with the overall performance. It would have been nice to test their goalkeeper a bit more but overall I'm delighted with the players' efforts." about the team's display. Jack Pelter signed for Sunderland on 8 September, from New Zealand team Canterbury United, on a free transfer in an original one-month deal. Two weeks after the defeat to Manchester United, Sunderland beat Reading 2–1 on 15 September. Kenwyne Jones and Ross Wallace scored the Sunderland goals in a game which was overshadowed by the tribute paid to 1973 FA Cup Final scorer Ian Porterfield who died on 11 September 2007. Sunderland met Middlesbrough on 22 September in their first north east derby of the season. Grant Leadbitter scored in the 2nd minute to put Sunderland in front, but two ex-Sunderland players; Julio Arca and Stewart Downing put Middlesbrough into the lead. Liam Miller scored an 89th minute volley to save a point for Sunderland. Grant Leadbitter scored his second goal in as many games on 29 September as Blackburn Rovers beat Sunderland 2–1.
 Passage 2:After earning his Ph.D in 1955, Decareau worked for Raytheon in Allston on microwave technology that would lead to the development of the microwave oven. Decareau's wife, Rosa, commented that a lot of work on the microwave oven was done at their home. Then at Lipton, he was involved in freeze drying. In the 1960s, Decareau moved to Palo Alto, California to work with Litton Industries. While at Litton, he developed microwave ovens that would be the foundation of commercial versions. Decareau moved back to Natick, Massachusetts later in his career to work in research and development at the United States Army Soldier Systems Center to develop food processing techniques for military and space exploration applications. His work would earn him Fellowship of the Institute of Food Technologists in 1994. During his career, Decareau was one of the first people to refer to himself as a food scientist.
 Passage 3:Li made his professional opera debut in 2011 with the SFO as Le Dancaïre in Georges Bizet's Carmen. His subsequent appearances with the SFO include Ascanio Petrucci in Lucrezia Borgia (2011), Lorenzo in I Capuleti e i Montecchi (2012), Sciarrone in Tosca (2012), The Indian Gardener / Ben Weatherstaff in the world premiere of Nolan Gasser's The Secret Garden (2013), and both Fiorello and Don Basilio in The Barber of Seville (2013). He was also a featured soloist in a 2013 concert honoring mezzo-soprano Zheng Cao at the San Francisco War Memorial and Performing Arts Center. He has also appeared at the Seoul Arts Centre in Korea as Gremin in Eugene Onegin, and appeared in that same opera as the Captain of the Guards at the National Centre for the Performing Arts in Beijing in 2014. In 2015 he created the role of Male Soloist No. 4 in the world premiere of Huang Ruo's Paradise Interrupted at the Spoleto Festival USA.

Output:
2