Detailed 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.
Problem:Question: Who long did the Russian internal conflict where women fought on both sides last? Passage 1:In 1966/67 she went to Puerto Rico, where she worked in the Anti-Poverty Programs of the Office of Economic Opportunity. From 1969 to 1970, she taught seminars on women's studies and on race and class at Columbia College Chicago and was active in the women’s movement. In 1972 Schultz was awarded a Ph.D. at University of Wisconsin–Madison. In 1973 she returned to Germany and taught women's studies and cultural and immigration issues at the John F. Kennedy Institute for North American Studies at the Free University of Berlin. Alongside, she established together with a few fellow campaigners a book publishing house specialized on feminist literature and a feminist women's health center in 1974. As a visiting professor, she taught sociology of education at State University of New York in 1981. In 1984, she helped civil rights activist and poet Audre Lorde, whom she got to know at the 1980 UN World Conference on Women in Copenhagen, to become a visiting professor at FU Berlin. In 1989 she habilitated at the Institute of Sociology of the Free University of Berlin.
 Passage 2:The final was played under floodlights at the Sir Vivian Richards Stadium, in North Sound, Antigua, roughly a 15-minute drive north of the country's capital city, St. John's. The stadium had not been used during the group stage of the tournament, but hosted both semi-finals prior to the final. A crowd of over 9,000 attended the match, which began at 20:00 AST () with a scheduled break between the two innings from 21:30 to 21:50; play was due to finish by 23:20. Langton Rusere of Zimbabwe and the South African Shaun George were appointed at on-field umpires for the match, with Gregory Brathwaite as the TV umpire. Nitin Menon served as reserve umpire, while Sir Richie Richardson was the match referee. Rusere's appointment marked the first time that a Zimbabwean had stood in the final of a major international cricket tournament. George had previously umpired in three Women's Cricket World Cup finals, in each of 2005, 2013 and 2017.
 Passage 3:The only nation to deploy female combat troops in substantial numbers was Russia. From the onset, female recruits either joined the military in disguise or were tacitly accepted by their units. The most prominent were a contingent of front-line light cavalry in a Cossack regiment commanded by a female colonel, Alexandra Kudasheva. Others included Maria Bochkareva, who was decorated three times and promoted to senior NCO rank, while The New York Times reported that a group of twelve schoolgirls from Moscow had enlisted together disguised as young men. In 1917, the Provisional Government raised a number of "Women's Battalions", with Bochkareva given an officer's commission in command. They were disbanded before the end of the year. In the later Russian Civil War, they fought both for the Bolsheviks (infantry) and the White Guard.

Solution:
3