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: How many pilots belong to the Finnish Air Force? Passage 1:University College Dublin A.F.C. was founded in 1895 as the Catholic University Medical School Football Club. They began playing regular games the following year. A First XI played College games against other Universities and a Second XI entered outside competitions. The club was founder members of the Leinster Junior League in 1896 and reached the semi-finals of the Leinster Senior Cup in 1897. The club became University College Dublin when the new University annexed the Medical school in 1908. UCD won the inaugural Intervarsities competition, the Collingwood Cup, in 1914 and added the Irish Intermediate Cup the following year beating Portadown 2–1 in a replayed final. When the Irish Free State was formed in 1921 and the new Football Association of Ireland was formed, UCD participated in the Preliminary round against fellow non-League team Shamrock Rovers in November 1921. The game took place in Windy Arbour and the Hoops won 6–2. UCD were invited to join the League of Ireland in 1922, but had to turn it down on the basis of not being able to field a team in the League of Ireland Shield in September as the Academic year didn't commence until October. In 1945 they won the FAI Intermediate Cup when UCD beat fellow future League of Ireland members Cobh Ramblers 4–2 in the final. UCD appeared in the FAI Cup in the 1930s, 1940s and 1950s, their final appearance as a non-League outfit coming in 1957 when Cork Athletic beat UCD 4–2 in the Mardyke.
 Passage 2:Tom Blackburn became ill with terminal lung cancer during the 1963–64 season. Don Donoher, a former Dayton player and assistant coach took over for the final three games of the 1963–64 season. Donoher, with Assistant Coach Chuck Grigsby, guided the Flyers to the NCAA Sweet Sixteen in his first two years as coach; they then led the Flyers to the 1967 NCAA Championship game by beating Western Kentucky, #8 ranked Tennessee, Virginia Tech, and #4 ranked North Carolina, before falling to #1 ranked and eventual champion UCLA 79–64 in the final. Donoher's 1967–68 squad began the season ranked #6 in the country in the AP Poll, but faltered in early competition and finished with a 17–9 record, missing the NCAA tournament. Nonetheless, Donoher's Flyers made a successful run through the 1968 NIT field, besting Kansas in the championship to win their second NIT crown. The Flyers would again face UCLA in a pivotal NCAA tournament game in 1974. The 20–7 Flyers squared off against the Bruins in the West Regional Sweet Sixteen and took the Bill Walton-led seven consecutive NCAA Champions to three overtimes before eventually falling 111–100. Donoher would again lead the Flyers to NCAA success in 1984 as Roosevelt Chapman led Flyers bested LSU, #7 ranked Oklahoma, and #15 ranked Washington before falling in the Elite Eight to eventual national champion Georgetown. The 24-season Donoher era was arguably Dayton's finest, producing eight NCAA tournament invitations, and eight NIT invitations. Following the success of the 1967 National Runner Up squad, the University began planning for a new 13,500 seat facility to house the nationally prominent Flyers. The UD Arena became the Flyer's home court at the start of the 1969–70 season.
 Passage 3:Somersalo was educated at the University of Helsinki before studying natural sciences at the University of Jena. Based in Germany during the First World War he enrolled in the German Army as an officer in 1916, serving until the armistice. He would later claim that the war had been the death of old Europe and argued that one of its main positives was that it had "rescued our nation from the deadly, slimy embrace of a lothsome cuttlefish" in reference to Russia. He transferred straight to the Finnish Army and from 1920 to 1926 was the commander of the Finnish Air Force.

Output:
3