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: What time period is the Saite Era? Passage 1:Sylvester began his study of mathematics at St John's College, Cambridge in 1831, where his tutor was John Hymers. Although his studies were interrupted for almost two years due to a prolonged illness, he nevertheless ranked second in Cambridge's famous mathematical examination, the tripos, for which he sat in 1837. However, Sylvester was not issued a degree, because graduates at that time were required to state their acceptance of the Thirty-Nine Articles of the Church of England, and Sylvester could not do so because he was Jewish. For the same reason, he was unable to compete for a Fellowship or obtain a Smith's prize. In 1838, Sylvester became professor of natural philosophy at University College London and in 1839 a Fellow of the Royal Society of London. In 1841, he was awarded a BA and an MA by the University of Dublin (Trinity College). In the same year he moved to the United States to become a professor of mathematics at the University of Virginia, but left after less than four months following a violent encounter with two students he had disciplined. He moved to New York City and began friendships with the Harvard mathematician Benjamin Peirce (father of Charles Sanders Peirce) and the Princeton physicist Joseph Henry. However, he left in November 1843 after being denied appointment as Professor of Mathematics at Columbia College (now University), again for his Judaism, and returned to England.
Passage 2:While completing a B.A. in English at Nebraska Wesleyan University in 1994, he worked at Prairie Schooner and founded the Coyote, a general-interest pop culture magazine, which also received multiple awards from the Columbia Scholastic Press Association. He worked at Texas Tech University Press while completing an M.A. in English from Texas Tech University. He worked at Callaloo and edited Meridian, which he founded, while completing his M.F.A. at the University of Virginia. He later worked at Coffee House Press and the Minnesota Historical Society Press, where he worked on Cheri Register's book Packinghouse Daughter, about the meatpackers strike in Albert Lea, Minnesota, in 1959.
Passage 3:Despite that it was unusual for women to participate in archaeology at the time, in 1901, encouraged by Howard Carter, Lady William Cecil began excavations at Qubbet el-Hawa near Aswan. Her family was wintering in the area and while exploring on the west bank of the Nile had discovered what she thought might be an ancient cemetery. Carter, who in 1899 had been appointed by the Antiquities Service as one of two European Chief Inspectors and in charge of excavations in the Nile Valley south from Qus to the Sudanese border, came to see the find the following day. He arranged for permits to excavate and provided an inspector and workers to assist in the dig. She kept a diary of the details of the expedition in which multiple tombs were found, as well as wooden anthropoid coffins of the Saite Era. Though the entire necropolis was infested with termites, Tomb 21 yielded two burial boxes. The male's coffin disintegrated when it was touched, but the female's coffin remained intact and was removed. The exterior was painted in yellow and devoid of any inscription. The mummy was covered with a blue network of beading. A coarse blue glaze was used on the winged scarabs and Amenti gods depicted on the canopic jars. The sole adornment of the mummy was a one inch by half inch opaque green stone. Lady William's diary recorded that the names found in the tomb were Bao-bao, daughter of Pawebas and Shepentanefet and her brother Waher. She also reported remnants of a former burial, which may have been the tomb of Shepentanefret.

Output:
3