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: In what state is the Observatory where the photographic plates of  Zeta Aurigae that led to a classification of spectroscopic binary taken? Passage 1:Zeta Aurigae was first recognized as a spectroscopic binary by William Hammond Wright while analyzing photographic plates taken at Lick Observatory between 1898 and 1908. This star is among those earlier described by Antonia Maury as having a composite spectrum. The first orbit was determined in 1924 by William Edmund Harper using measurements taken at Dominion Observatory, his orbital elements are very similar to the most recent determinations. Harper also noticed that the composite nature of the spectrum had disappeared on the one plate when the K type primary was nearest the sun indicating a possible eclipse. In 1932 the eclipsing binary nature of the system was confirmed by Paul Guthnick, Heribert Schneller and independently Josef Hopmann.
 Passage 2:Haskell was born in Palmyra, Maine in 1843 to Aretas Haskell and Sophia Hathorn (Haskell). He attended Bates College's Nichols Latin School/Maine Central Institute. Haskell was a great-nephew of Seth Hathorn who donated Bates' first building. After serving in the American Civil War with the first Maine Cavalry (including at Gettysburg) and being wounded, Haskell returned to his father's farm in Maine, and then moved to Marysville, California where he read law and was admitted to the bar in 1875. Eventually he moved back to Pittsfield, Maine for a period and then to Glendive, Montana where served as a district attorney. He was elected as a member of Montana Territorial House of Representatives in 1888 and served as a delegate to Montana state constitutional convention in 1889. In 1889 Haskell was elected as the first Montana state attorney general and served until 1897 as a Republican. Haskell was an active Freemason. In the election he defeated Ella Knowles Haskell, whom he later married and then divorced in 1897. Henri Haskell died in 1921.
 Passage 3:Catania was the first openly gay member of the D.C. Council and one of a small number of openly gay Republican office-holders. This led to a conflict within his party when President George W. Bush spoke in favor of an amendment to the United States Constitution to ban same-sex marriage. Catania opposed the amendment and became a vocal opponent of Bush's 2004 re-election. In response, the District of Columbia Republican Committee decertified him as a delegate to the 2004 Republican National Convention. Catania announced his endorsement of the Democratic presidential candidate, John Kerry, one week prior to the convention. In September 2004, Catania left the party and became an independent, citing his displeasure with its direction on urban and social issues. He was re-elected in 2006 and 2010 as an independent.

Output:
1