Question: Who was in charge of the country where the orchestrator of Chopiniana was a citizen?

full_context: Document 1: Frédéric Chopin: Chopin's music was used in the 1909 ballet Chopiniana, choreographed by Michel Fokine and orchestrated by Alexander Glazunov. Sergei Diaghilev commissioned additional orchestrations—from Stravinsky, Anatoly Lyadov, Sergei Taneyev and Nikolai Tcherepnin—for later productions, which used the title Les Sylphides.
Document 2: Russian Soviet Federative Socialist Republic: On June 12, 1990, the Congress of People's Deputies adopted the Declaration of State Sovereignty. On June 12, 1991, Boris Yeltsin was elected the first President. On December 8, 1991, heads of Russia, Ukraine and Belarus signed the Belavezha Accords. The agreement declared dissolution of the USSR by its founder states (i.e. denunciation of 1922 Treaty on the Creation of the USSR) and established the CIS. On December 12, the agreement was ratified by the Russian Parliament, therefore Russian SFSR denounced the Treaty on the Creation of the USSR and de facto declared Russia's independence from the USSR.
Document 3: Alexander Polovtsov: Polovtsov was the initiator of the creation of the Russian Historical Society (created in 1865). He was the Secretary of the society in 1866-1879 and the Chairman of the society from 1879 until his death in 1909. The society commissioned works of such historians as Sergey Solovyov, Nikolay Kostomarov, Vasily Klyuchevsky who set the foundation for the History of Russia. Under Polovtsov the society published 128 volumes of "Sborniks of Russian Historical Society". Polovtsov also prepared the 25 volumes of the Russian Biographical Dictionary that played an important role as the source of the biographical data on Russian people. To correctly establish the notability Polovtsov refused to include biographies of living people. Polovtsov (together with his father-in-law Alexander von Stieglitz founded the Stieglitz Museum of Applied Arts.
Document 4: Russian Soviet Federative Socialist Republic: On March 17, 1991, an all-Russian referendum created the post of President of the RSFSR. On June 12, Boris Yeltsin was elected President of Russia by popular vote. During an unsuccessful coup attempt on August 19–21, 1991 in Moscow, the capital of the Soviet Union and Russia, President of Russia Yeltsin strongly supported the President of the Soviet Union, Mikhail Gorbachev.
Document 5: Novosibirsk Youth Symphony Orchestra: Among the members of the orchestra there are many international, all-Russian, and regional competitions. Vladislav Yankovsky the Honored Artist of Russia, the main conductor-leader of the orchestra since the beginning. The professional help for the young musicians of the Academic symphony orchestra of the Novosibirsk State Philarmonic Society and its main conductor, People's artist of USSR, professor Arnold Katz, is very important.
Document 6: Peredvizhniki: During their blossoming (1870–1890), the Peredvizhniki society developed an increasingly wider scope, with more natural and free images. In contrast to the traditional dark palette of the time, they chose a lighter palette, with a freer manner in their technique. They worked for naturalness in their images, and the depiction of people's relationship with their surroundings. The society united most of the highly talented artists of the country. Among Peredvizhniki there were artists of Ukraine, Latvia, and Armenia. The society also showed the work of Mark Antokolski, Vasili Vereshchagin, and Andrei Ryabushkin. The work of the critic and democrat Vladimir Stasov was important for the development of Peredvizhniki's art. Pavel Mikhailovich Tretyakov showed the work of these artists in his gallery and gave them important material and moral support.
Document 7: Privatization in Russia: Privatization in Russia describes the series of post-Soviet reforms that resulted in large - scale privatization of Russia's state - owned assets, particularly in the industrial, energy, and financial sectors. Most privatization took place in the early and mid-1990s under Boris Yeltsin, who assumed the presidency following the dissolution of the Soviet Union.
Document 8: Belyayev circle: The Belyayev circle () was a society of Russian musicians who met in Saint Petersburg, Russia between 1885 and 1908, and whose members included Nikolai Rimsky-Korsakov, Alexander Glazunov, Vladimir Stasov, Anatoly Lyadov, Alexander Ossovsky, Witold Maliszewski, Nikolai Tcherepnin, Nikolay Sokolov, Alexander Winkler among others. The circle was named after Mitrofan Belyayev, a timber merchant and amateur musician who became a music philanthropist and publisher after hearing the music of the teenage Glazunov.
Document 9: Konstantin Karlovich Albrecht: Konstantin Karlovich Albrecht (4 October 183626 June 1893) was a cellist in the Moscow Bolshoi Theater orchestra, a teacher and administrator. Interested in choral music, he founded the Moscow Choral Society in 1878. He also helped to found the Russian Musical Society and the Moscow Conservatory.
Document 10: Frédéric Chopin: Possibly the first venture into fictional treatments of Chopin's life was a fanciful operatic version of some of its events. Chopin was written by Giacomo Orefice and produced in Milan in 1901. All the music is derived from that of Chopin.
Document 11: Frédéric Chopin: Chopin has figured extensively in Polish literature, both in serious critical studies of his life and music and in fictional treatments. The earliest manifestation was probably an 1830 sonnet on Chopin by Leon Ulrich. French writers on Chopin (apart from Sand) have included Marcel Proust and André Gide; and he has also featured in works of Gottfried Benn and Boris Pasternak. There are numerous biographies of Chopin in English (see bibliography for some of these).
Document 12: Frédéric Chopin: Four boarders at his parents' apartments became Chopin's intimates: Tytus Woyciechowski, Jan Nepomucen Białobłocki, Jan Matuszyński and Julian Fontana; the latter two would become part of his Paris milieu. He was friendly with members of Warsaw's young artistic and intellectual world, including Fontana, Józef Bohdan Zaleski and Stefan Witwicki. He was also attracted to the singing student Konstancja Gładkowska. In letters to Woyciechowski, he indicated which of his works, and even which of their passages, were influenced by his fascination with her; his letter of 15 May 1830 revealed that the slow movement (Larghetto) of his Piano Concerto No. 1 (in E minor) was secretly dedicated to her – "It should be like dreaming in beautiful springtime – by moonlight." His final Conservatory report (July 1829) read: "Chopin F., third-year student, exceptional talent, musical genius."
Document 13: Russia: In June 1991, Boris Yeltsin became the first directly elected President in Russian history when he was elected President of the Russian Soviet Federative Socialist Republic, which became the independent Russian Federation in December of that year. During and after the disintegration of the Soviet Union, wide-ranging reforms including privatization and market and trade liberalization were undertaken, including radical changes along the lines of "shock therapy" as recommended by the United States and the International Monetary Fund. All this resulted in a major economic crisis, characterized by a 50% decline in both GDP and industrial output between 1990 and 1995.
Document 14: History of Russia (1991–present): Prior to the dissolution of the Soviet Union, Boris Yeltsin had been elected President of Russia in June 1991 in the first direct presidential election in Russian history. This ensured that Yeltsin would be the political leader of the Russian successor state following dissolution. This situation resulted in political turmoil as the Soviet and Russian leadership wrestled for control, which culminated in the 1991 August Putsch, where the Soviet military attempted to overthrow Gorbachev. Although the coup was ultimately averted, this situation contributed to rising instability in the Soviet Union. By October 1991, as the USSR was on the verge of collapse, Yeltsin announced that Russia would proceed with radical reforms, including market - oriented reform along the lines of Poland's ``big bang '', also known as`` shock therapy''.
Document 15: Frédéric Chopin: Polish composers of the following generation included virtuosi such as Moritz Moszkowski, but, in the opinion of J. Barrie Jones, his "one worthy successor" among his compatriots was Karol Szymanowski (1882–1937). Edvard Grieg, Antonín Dvořák, Isaac Albéniz, Pyotr Ilyich Tchaikovsky and Sergei Rachmaninoff, among others, are regarded by critics as having been influenced by Chopin's use of national modes and idioms. Alexander Scriabin was devoted to the music of Chopin, and his early published works include nineteen mazurkas, as well as numerous études and preludes; his teacher Nikolai Zverev drilled him in Chopin's works to improve his virtuosity as a performer. In the 20th century, composers who paid homage to (or in some cases parodied) the music of Chopin included George Crumb, Bohuslav Martinů, Darius Milhaud, Igor Stravinsky and Heitor Villa-Lobos.
ground_truth: Boris Yeltsin
sub_queries: Who orchestrated Chopiniana? Answer: Alexander Glazunov.
Alexander Glazunov. >> country of citizenship Answer: Russia
Who was in charge of Russia ? Answer: Boris Yeltsin