Question: After Gorbachev left office, who became president of the country where Kseniya Boguslavskaya's husband was born?

full_context: Document 1: Bolesław Leśmian: Bolesław Leśmian was born January 22, 1877 in Warsaw, Congress Poland, Russian Empire to a family of Polonized Jewish intelligentsia. He spent his childhood and youth in Kiev, where he graduated from the law faculty of Saint Vladimir University. In 1901, he returned to Warsaw. From there, he set off on a journey to various European cities, including Munich and Paris, where he married a painter, Zofia Chylińska. Heavily influenced by French modernists, Leśmian returned to Warsaw, where he became one of the founders of an experimental "Artistic Theatre". There he also met one of his closest friends, Zenon Przesmycki, with whom he became involved in the publication of "Chimera", an art newspaper.
Document 2: Ivan Puni: Ivan Puni was born in Kuokkala (then Grand Duchy of Finland in the Russian Empire, now Repino in Russia) to a family of Italian origins. He is the grandson of an eminent Italian composer of ballet music, Cesare Pugni.
Document 3: Dissolution of the Soviet Union: In a nationally televised speech early in the morning of December 25, 1991, Gorbachev resigned as president of the USSR – or, as he put it, "I hereby discontinue my activities at the post of President of the Union of Soviet Socialist Republics." He declared the office extinct, and all of its powers (such as control of the nuclear arsenal) were ceded to Yeltsin. A week earlier, Gorbachev had met with Yeltsin and accepted the fait accompli of the Soviet Union's dissolution. On the same day, the Supreme Soviet of the Russian SFSR adopted a statute to change Russia's legal name from "Russian Soviet Federative Socialist Republic" to "Russian Federation," showing that it was now a sovereign state.
Document 4: Dan Petrașincu: He was born in Odessa from an Italian father and a Romanian mother. In the aftermath of the Russian Revolution, when he was ten years old, the family fled to Romania, where he went to high school in Râmnicu Sărat and Bucharest.
Document 5: Marius Petipa: Marius Ivanovich Petipa (Russian: Ма́риус Ива́нович Петипа́), born Victor Marius Alphonse Petipa (11 March 1818 -- 14 July (O.S. 1 July) 1910) was a French and Russian ballet dancer, pedagogue and choreographer. Petipa is considered to be the most influential ballet master and choreographer in ballet history.
Document 6: Dissolution of the Soviet Union: The dissolution of the Soviet Union occurred on December 26, 1991, officially granting self - governing independence to the Republics of the Soviet Union. It was a result of the declaration number 142 - Н of the Supreme Soviet of the Soviet Union. The declaration acknowledged the independence of the former Soviet republics and created the Commonwealth of Independent States (CIS), although five of the signatories ratified it much later or did not do so at all. On the previous day, 25 December 1991, Soviet President Mikhail Gorbachev, the eighth and final leader of the Soviet Union, resigned, declared his office extinct, and handed over its powers -- including control of the Soviet nuclear missile launching codes -- to Russian President Boris Yeltsin. That evening at 7: 32 p.m., the Soviet flag was lowered from the Kremlin for the last time and replaced with the pre-revolutionary Russian flag.
Document 7: Dissolution of the Soviet Union: The dissolution of the Soviet Union was formally enacted on December 26, 1991, as a result of the declaration no. 142-Н of the Soviet of the Republics of the Supreme Soviet of the Soviet Union. The declaration acknowledged the independence of the former Soviet republics and created the Commonwealth of Independent States (CIS), although five of the signatories ratified it much later or not at all. On the previous day, Soviet President Mikhail Gorbachev, the eighth and last leader of the Soviet Union, resigned, declared his office extinct, and handed over its powers – including control of the Soviet nuclear missile launching codes – to Russian President Boris Yeltsin. That evening at 7:32 p.m., the Soviet flag was lowered from the Kremlin for the last time and replaced with the pre-revolutionary Russian flag.
Document 8: Nora Gal: She was born on April 27, 1912 in Odessa. Her father was a medical doctor. As a child, she moved to Moscow with her family. After several unsuccessful attempts she was admitted to the Lenin Pedagogical Institute, from which she graduated. She then completed her post-graduate studies with a thesis on the French poet Arthur Rimbaud and published articles on classical and contemporary foreign literature (Guy de Maupassant, Byron, Alfred de Musset). She married literary critic Boris Kuzmin and later became editor of his selected works.
Document 9: Dissolution of the Soviet Union: The Soviet Union was dissolved on December 26, 1991. It was a result of the declaration number 142 - Н of the Soviet of the Republics of the Supreme Soviet of the Soviet Union. The declaration acknowledged the independence of the former Soviet republics and created the Commonwealth of Independent States (CIS), although five of the signatories ratified it much later or did not do so at all. On the previous day, Soviet President Mikhail Gorbachev, the eighth and final leader of the Soviet Union, resigned, declared his office extinct, and handed over its powers -- including control of the Soviet nuclear missile launching codes -- to Russian President Boris Yeltsin. That evening at 7: 32, the Soviet flag was lowered from the Kremlin for the last time and replaced with the pre-revolutionary Russian flag.
Document 10: Kseniya Boguslavskaya: Born in St. Petersburg, she studied art in Paris from 1911 to 1913. She returned to St. Petersburg in 1913 and married Ivan Puni. Their apartment in St Petersburg became a meeting place for avant-garde artists and poets. With Puni she published the cubo-futurist booklet "Roaring Parnassus" («Рыкающий Парнас») in 1914.
Document 11: Andrei Ivanovitch: Andrei Ivanovitch (born 1968 in Bucharest, Romania) is an international classical pianist and winner of a number of international competitions.
Document 12: Lev Kublanov: Lev Kublanov was born in Moscow, Russia, and spent his childhood in a historic neighborhood near the Red Square. He graduated from the Moscow Architectural Institute in 1972; he consequently worked for 20 years in various Moscow architectural design firms and became a member of the Architects’ Union of the USSR. He has been a member of the International Union of Architects since 1981. In 1985, tired of designing monotonous mass-apartment buildings and offices, Kublanov left architecture to become a graphic artist. Since then, he has participated in personal and group exhibitions in Russia, Western Europe, and USA. His works can be found in private collections all over the world, including Russia, Austria, Hungary, Germany, USA, Israel, Italy, Poland, France and Japan.
Document 13: Ivan Koumaev: Koumaev was born in Khabarovsk, Russia and moved to Mill Creek, Washington when he was seven years old. He started dancing at age 11 training under Kimera Lewis, after watching the film "Breakin'".
Document 14: Dissolution of the Soviet Union: Doubts remained over the authority of the Belavezha Accords to disband the Soviet Union, since they were signed by only three republics. However, on December 21, 1991, representatives of 11 of the 12 former republics – all except Georgia – signed the Alma-Ata Protocol, which confirmed the dissolution of the Union and formally established the CIS. They also "accepted" Gorbachev's resignation. While Gorbachev hadn't made any formal plans to leave the scene yet, he did tell CBS News that he would resign as soon as he saw that the CIS was indeed a reality.
Document 15: Alice Halicka: Alicja Halicka was born in Kraków and studied with Józef Pankiewicz there. She moved to Paris in 1912 where she studied at Académie Ranson under Paul Sérusier and Maurice Denis. There she met and married the Cubist painter Louis Marcoussis in 1913. In 1921 she showed cubist work together with her husband at the Société des Artistes Indépendants. She also exhibited her work at the Galerie Georges Petit, Paris (1930-31), Le Centaure, Brussels, the Leicester Galleries, London (1934), the Marie Harriman Gallery, New York (1936), Julian Levy Gallery, New York (1937). Halicka painted in various styles but also produced work in fabric, including Romances capitonnées, and even made set designs for ballets which were performed at the Metropolitan Opera of New York and Covent Garden, London.
ground_truth: Boris Yeltsin
sub_queries: Kseniya Boguslavskaya >> spouse Answer: Ivan Puni
What country is Ivan Puni from? Answer: Russia
Who became president of Russia after Gorbachev left office? Answer: Boris Yeltsin