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: Was Constantinople part of Russia in 1918? Passage 1:While serving as president of Osh State University, Beshimov became increasingly outspoken in his criticism towards then president Askar Akayev. Effective reforms of Osh State University gained him large popularity among the students. Students therefore protested, when Beshimov's political activity caused him to be fired. That same year Beshimov ran for a newly opened parliamentary spot from a district in Osh, and won a landslide victory. Beshimov became a prominent opposition leader. There were numerous attempts to assassinate and throw him in jail by the Akayev regime. Beshimov played a major role in negotiations with Askar Akayev on succeeding certain roles to the opposition. Under the agreement reached in the year 2000, Beshimov was appointed as Kyrgyzstan's ambassador to India with concurrent accreditation to Bangladesh, Nepal and Sri Lanka. Following the Tulip Revolution Beshimov returned to Kyrgyzstan to serve as vice-president of American University of Central Asia. Beshimov was a big supporter of and believer in the Tulip Revolution. After the new government followed short of promises made during the Tulip Revolution, and started reverting the course back to dictatorial rule, Beshimov re-engaged in politics, going into opposition against Kurmanbek Bakiyev. In December 2007 he was elected to Kyrgyzstan's Parliament, the Supreme Council, on the candidate list of the Social Democratic Party of Kyrgyzstan. He is the leader of the opposition fraction in the Kyrgyz Parliament.
Passage 2:Susan Barbara Gyankorama Ofori-Atta also de Graft-Johnson, (1917 July 1985) was a Ghanaian medical doctor the first female doctor on the Gold Coast. She was the first Ghanaian woman and fourth West African woman to earn a university degree. Ofori-Atta was also the third West African woman to become a physician after the Nigerians Agnes Yewande Savage (1929) and Elizabeth Abimbola Awoliyi (1938). In 1933, Sierra Leonean political activist and higher education pioneer, Edna Elliot-Horton became the second West African woman university graduate and the first to earn a bachelor's degree in the liberal arts. Eventually Ofori-Atta became a medical officer-in-charge at the Kumasi Hospital, and later, she assumed in charge of the Princess Louise Hospital for Women. Her contemporary was Matilda J. Clerk, the second Ghanaian woman and fourth West African woman to become a physician, who was also educated at Achimota and Edinburgh. Ofori-Atta was made an Honorary Doctor of Science by the University of Ghana for her work on malnutrition in children, and received the Royal Cross from Pope John Paul II when he visited Ghana in 1980, in recognition of her offering of free medical services at her clinic. She helped to establish the Women's Society for Public Affairs and was a Foundation Fellow of the Ghana Academy of Arts and Sciences. Her achievements were a symbol of inspiration to aspiring women physicians in Ghana.
Passage 3:The Bagration family's genealogy traces back at least to the medieval era in its male line and hundreds of years further back as rulers in the female line. Leonida's grandfather, Prince Alexander Bagration of Mukhrani, was born in 1853 in Georgia's historical capital Tbilisi, then part of the Russian Empire, and was killed by Bolsheviks at Pyatigorsk in 1918 during the Russian revolution. Fearing for their lives, the family took refuge in Constantinople, then spent eight months in Germany before returning to Tbilisi, now capital of the Georgian Soviet Socialist Republic, to re-claim a portion of property which, as emigres they risked losing to total confiscation. Although the family made repairs to their home and Leonida would recall her grandfather's insistence that they continue to dine formally on silver plate to retain their sense of propriety, they were eventually deprived of all but two rooms of their old palace and subjected to harassment. Thanks to the intervention of Maxim Gorky, who had enjoyed the patronage of the Bagrations, in 1931 they once again fled the Soviet Union, going into exile in Spain. The family moved to France, where Leonida's grandmother and relations had already settled.

Output:
3