Question: Who was in charge of the country where the Symphony No. 1 in E major composer was a citizen?

full_context: Document 1: 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 2: 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 3: Symphony No. 1 (Glazunov): Alexander Glazunov wrote his Symphony No. 1 in E major, Op. 5, in 1881, when he was 16 years old. It was premiered the following year in St. Petersburg. It is known as his Slavonian Symphony.
Document 4: 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 5: 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 6: Violin Concerto No. 1 (Szymanowski): Karol Szymanowski’s Violin Concerto No. 1, Op. 35, is considered one of the first modern violin concertos. It rejects traditional tonality and romantic aesthetics.
Document 7: 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 8: Symphony No. 6 (Vaughan Williams): Ralph Vaughan Williams's Symphony in E minor, published as Symphony No. 6, was composed in 1944–47, during and immediately after World War II and revised in 1950. Dedicated to Michael Mullinar, it was first performed, in its original version, by Sir Adrian Boult and the BBC Symphony Orchestra on 21 April 1948. Within a year it had received some 100 performances, including the U.S. premiere by the Boston Symphony Orchestra under Serge Koussevitzky on 7 August 1948. Leopold Stokowski gave the first New York performances the following January with the New York Philharmonic and immediately recorded it, declaring that "this is music that will take its place with the greatest creations of the masters." However, Vaughan Williams, very nervous about this symphony, threatened several times to tear up the draft. At the same time, his programme note for the first performance took a defiantly flippant tone.
Document 9: 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 10: 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 11: 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 12: 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 13: 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 14: Symphony No. 1 (Corigliano): John Corigliano's Symphony No. 1 for Orchestra was written between 1988 and 1989 during the composer's tenure as the first Composer-In-Residence for the Chicago Symphony Orchestra. The symphony's first performance was by the Chicago Symphony conducted by Daniel Barenboim on March 15, 1990.
Document 15: Scherzo in A-flat major (Borodin): Alexander Borodin's Scherzo in A-flat major is a lively piece written in 1885, while Borodin was in Belgium for an early performance of his then incomplete opera "Prince Igor". It was originally written for solo piano but in 1889 Alexander Glazunov orchestrated it, along with the "Petite Suite". Borodin dedicated the piece to Théodore Jadoul, who made a four-hand piano arrangement of it.
ground_truth: Boris Yeltsin
sub_queries: Symphony No. 1 in E major >> composer Answer: Alexander Glazunov
Alexander Glazunov >> country of citizenship Answer: Russia
Who was in charge of Russia ? Answer: Boris Yeltsin