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.

Ex Input:
Question: Who designed Hans Klemm's first light aircraft? Passage 1:The head of the femur, which articulates with the acetabulum of the pelvic bone, comprises two-thirds of a sphere. It has a small groove, or fovea, connected through the round ligament to the sides of the acetabular notch. The head of the femur is connected to the shaft through the neck or collum. The neck is 4–5 cm. long and the diameter is smallest front to back and compressed at its middle. The collum forms an angle with the shaft in about 130 degrees. This angle is highly variant. In the infant it is about 150 degrees and in old age reduced to 120 degrees on average. An abnormal increase in the angle is known as coxa valga and an abnormal reduction is called coxa vara. Both the head and neck of the femur is vastly embedded in the hip musculature and can not be directly palpated. In skinny people with the thigh laterally rotated, the head of the femur can be felt deep as a resistance profound (deep) for the femoral artery.
 Passage 2:Born in Tel Aviv, Israel, on November 26, 1971, Huberman is the son of Holocaust survivors. He and his family moved to Oak Ridge, Tenn., when his father, a cancer researcher, began working at the Oak Ridge National Laboratory. Huberman attended the University of Wisconsin–Madison, graduating with a Bachelor's Degree in psychology and English in 1994. After graduation, he joined the Chicago Police Department where he initially served as a beat officer. While working full-time as a Chicago police officer, Huberman attended night classes at the University of Chicago and earned two advanced degrees in 2000, a Master of Social Work from the School of Social Service Administration and a Master of Business Administration from the university's Graduate School of Business (now the Booth School of Business). Huberman was a recipient of The Paul & Daisy Soros Fellowships for New Americans and an Albert Schweitzer Fellow while attending the University of Chicago.
 Passage 3:Hans Klemm's first light aircraft was the Daimler L15 and the L20 had much in common with it. Both were cantilever monoplanes with twin open, tandem cockpits and engines of very low power. The L20's low wing distinguished it from its predecessor and had the advantage of providing a low centre of gravity and better view during the landing approach as well as better protection for occupants in case of crash landings. The low-set wing also allowed a shorter undercarriage on the L20, which was otherwise like that of the L15 with the wheels independently mounted on pairs of centrally hinged V-struts and with vertical shock absorbing legs to the wing underside. Wheels were sometimes replaced by floats. Intended from the start for serial production, the L20's structure was simplified, with a pentagonal cross-section fuselage lacking the L15's rounded upper and lower surfaces. The fuselage was wooden framed with canvas covering. The overall strength of the structure, which had a safety factor of 12, was emphasised.


Ex Output:
3


Ex Input:
Question: Which Armored Regiment was based in a larger town? Passage 1:In March 1945, the 1st Tank Division with its 5th Armored Regiment was reassigned to the Japanese home islands in preparation for the expected invasion by Allied forces. It gained the IJA 1st Armored Regiment from the 3rd Tank Division, and formed part of the IJA 36th Army under the Japanese Twelfth Area Army. The headquarters unit and IJA 1st Armored Regiment were based in Sano, Tochigi, with the IJA 5th Armored Regiment stationed at Ōtawara, Tochigi (and later relocated to Kazo, Saitama, and the IJA 1st Mechanized Infantry Regiment and the Division’s mechanized artillery stationed at Tochigi. Anticipating that Allied forces would land at Kujūkuri Beach, the 1st Tank Division was to hold a defensive line stretching from Mount Tsukuba to the Tama River, with forward units deployed to Choshi, Chiba. The surrender of Japan came before the landing, and the 1st Armored Division did not see any combat on Japanese soil.
 Passage 2:Fredell Lack was born in Tulsa, Oklahoma, the oldest of three children of Jewish Eastern European (Latvian) immigrants, Abram I. Lack and Sarah Stillman Lack (who was a sister of noted painter Ary Stillman). She began violin lessons at age six, studying with Tosca Berger. When Fredell was 10, she moved with her family to Houston, Texas. There she studied with Josephine Boudreaux, the concertmaster of the Houston Symphony. At age 11, she first soloed with orchestra, performing the Wieniawski Concerto No. 2 with the Tulsa Philharmonic. At 12, Lack was accepted into the New York City studio of the legendary violinist and pedagogue Louis Persinger, whose other students included such artists as Yehudi Menuhin, Isaac Stern, and Ruggiero Ricci. She moved to New York and completed her pre-college schooling at the Bentley School while continuing her violin lessons with Persinger. At 17, she made her professional solo debut, playing the Mendelssohn Violin Concerto with the St. Louis Symphony. Subsequently she received a full scholarship to the Juilliard School in New York. She continued studying violin with Persinger there and also was deeply influenced by her study of chamber music with Felix Salmond. She received the Diploma from Juilliard at age 21.
 Passage 3:When the song was first released as a single in 1994, no remixes were commissioned. Carey re-released the song commercially in Japan in 2000, with a new remix known as the So So Def remix. The remix contains new vocals and is played over a harder, more urban beat that contains a sample of Afrika Bambaataa & the Soulsonic Force's "Planet Rock;" it features guest vocals by Jermaine Dupri and Bow Wow. The remix appears on Carey's compilation album Greatest Hits (2001) as a bonus track. A video was created for the So So Def remix, but it does not feature Carey or the hip-hop musicians that perform in the song. Instead, the video is animated and based on a scene in the video from Carey's "Heartbreaker" (1999). It features cartoon cameo appearances by Carey, Jermaine Dupri, Bow Wow, Luis Miguel (Carey's boyfriend at the time), Carey's dog Jack, and Santa Claus. In 2009 and 2010, the song was included in a music video accompanying ESPN's (and their sister station, ABC) Christmas Day coverage of the NBA.


Ex Output:
1


Ex Input:
Question: How old was the person elected in April 1999 when he was sworn in? Passage 1:He was appointed Chancellor in 1383, and created Earl of Suffolk in 1385, the first of his family to hold any such title (the earldom had become extinct in 1382 on the death of William de Ufford). However, in the late 1380s his fortunes radically altered, in step with those of the king. During the Wonderful Parliament of 1386 he was impeached on charges of embezzlement and negligence, a victim of increasing tensions between Parliament and Richard. He was the first official in English history to be removed from office by the process of impeachment. Even after this disgrace, he remained in royal favour, although soon fell foul of the Lords Appellant. He was one of a number of Richard's associates accused of treason by the Appellants in November 1387. After the Appellants' victory at Radcot Bridge (December 1387) and before the so-called Merciless Parliament met in February 1388, De La Pole shrewdly fled to Paris, thus escaping the fate of Sir Nicholas Brembre and Chief Justice Robert Tresilian. He remained in France for the remainder of his life. Sentenced in his absence, his title and estates were stripped from him.
 Passage 2:Gassaway won 153 games in minor league baseball, with a career high of 17 victories in 1944 for the Milwaukee Brewers of the top-level American Association. He was called up to the Cubs and made two late-season starts but was ineffective. The 1945 season — the last year of the World War II player shortage — was Gassaway's only complete year in the Majors. Pitching for the last-place Philadelphia Athletics, he worked in 24 games pitched (including 11 starting assignments) and 118 innings, and posted a 4–7 record with an earned run average of 3.74 and four complete games. He split 1946 between the MLB Indians and the Triple-A Oakland Oaks, working in 13 games for Cleveland (with six more starts) from July through the end of the season. He then returned to the minors for the remainder of his active career, and spent nine years as a minor league manager, working mostly for the Philadelphia Phillies' organization.
 Passage 3:Following the death of military dictator and de facto ruler of Nigeria, General Sani Abacha in 1998, his successor General Abdusalami Abubakar initiated the transition which heralded Nigeria's return to democratic rule in 1999. The ban on political activities was lifted, and political prisoners were released from detention facilities. The constitution was styled after the ill-fated Second Republic — which saw the Westminster system of government jettisoned for an American Presidential system. Political parties were formed (People's Democratic Party (PDP), All Nigeria Peoples Party (ANPP), and Alliance for Democracy (AD)), and elections were set for April 1999. In the widely monitored 1999 election, former military ruler Olusegun Obasanjo was elected on the PDP platform. On 29 May 1999, Obasanjo was sworn in as President and Commander-in-Chief of the Federal Republic of Nigeria.


Ex Output:

3