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.
Input: Question: What was Daniel Coit Gilman president of? 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:In his will Johns Hopkins (1795-1873) left his summer home and estate, Clifton, then northeast of Baltimore, off the Harford Road, to the university for its new campus along with $7 million, split between the university and a hospital, also named for him. One of his provisions was that only interest obtained from his stock in the Baltimore and Ohio Railroad could be used to build facilities for the university. Unfortunately, after Johns Hopkins' death, the B&O Railroad fell into mismanagement; its eventual financial collapse was hastened by the Financial Panic and Recession of 1893 and the stock's value declined drastically. Therefore, the original campus of the university was established by first President Daniel Coit Gilman in downtown Baltimore along North Howard Street, between West Center, Little Ross, and West Monument Streets on the west side of the Mount Vernon-Belvedere neighborhood, where buildings were already available. However, this location did not permit room for growth and soon the trustees began to look for a place to move. Eventually, Hopkins would relocate to the former Homewood House and Estate of Charles Carroll, Jr. (son of Charles Carroll of Carrollton, 1737-1832) built 1801-1803, and the later Wyman Villa estate of JHU Board member William Wyman, built in the 1880s. Here JHU created the park-like main campus of Hopkins Homewood, set on 140 acres (0.57 km²) in what today lies between the north Baltimore neighborhoods of Charles Village (begun in the 1870s, and then known as Peabody Heights) to the east, the planned suburban-style communities of Guilford (established 1913) and Roland Park (established early 1890s) to the north, and to the west, the mill towns of Hampden-Woodberry along the Jones Falls stream valleys and tributary Stony Run through Wyman Park and the Wyman Park Dell.

Output:
3