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 which state did Sachs become a full professor? Passage 1:Although Tarapatie "Tara" Oedayraj (Udairaj) Singh Varma was born in British Guiana, she attended vocational education in the neighboring Dutch Surinam, which was a colony of the Netherlands at the time, studying teaching and law, without graduating. She then moved to Amsterdam, in the continental part of the Netherlands. In Amsterdam she became active for the Communist Party of the Netherlands. Between 1982 and 1994 she was member of the Amsterdam municipal council for the CPN, between 1986 and 1990 for the Left Accord, a common list of the Pacifist Socialist Party and the Political Party of Radicals, and between 1990 and 1994 for GreenLeft, which was formed by a merger of CPN, PSP, PPR, and the small Evangelical People's Party.
 Passage 2:As Small Heath, they played in the Football Alliance before becoming founder members and first champions of the Football League Second Division. The most successful period in their history was in the 1950s and early 1960s. They achieved their highest finishing position of sixth in the First Division in the 1955–56 season and reached the 1956 FA Cup Final. Birmingham played in two Inter-Cities Fairs Cup finals, in 1960, as the first English club side to reach a major European final, and again the following year. They won the League Cup in 1963 and again in 2011. Birmingham have played in the top tier of English football for around half of their history: the longest period spent outside the top division, between 1986 and 2002, included two brief spells in the third tier of English football, during which time they won the Football League Trophy twice.
 Passage 3:Sachs joined the faculty at Case Western Reserve University in 1957 and was made a full professor in 1966. He left Case Western Reserve to become the section chief of neurochemistry at The Roche Institute of Molecular Biology. Through his research, Sachs discovered the relationship between neurophysin, an intracellular chaperone protein and vasopressin, the neurohormone that is critical for maintaining water balance in the body. He hypothesized that neurophysin and vasopressin are both part of a larger, inactive precursor protein, a prohormone, which is then enzymatically cleaved and processed within the secretory granule to produce and secrete both peptide products. Sachs' hypothesis preceded the discovery of proinsulin by 3 years, and his research laid the foundation for understanding the biosynthesis of all brain peptides and many proteins, which are major constituents involved in brain and neuroendocrine functions. Sachs showed that vasopressin was first synthesized as a prohormone in specialized nerve cells (called neurosecretory cells) in the hypothalamus and was then transported to the nerve terminals in the posterior pituitary where the vasopressin peptide was completely processed during axonal transport in secretory granules and ultimately secreted into the blood. He also showed that brain tissue could be kept intact and functional for two months in tissue culture, and contributed to the understanding of the interactions between the neuroendocrine neurons and neuroglial cells in the hypothalamal-neurohypophysial system (HNS).

Output:
3