Question: Who was in charge of the country of citizenship where the leading cast member of the film Valentino was from?

full_context: Document 1: 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 2: Ğäliäsğar Kamal: Ğäliäsğar Kamal was born on 6 January 1879 in the family of a furrier craftsman in Kazan. He studied in the Kazan Madrassahs "Ğosmaniä" and "Möxämmadiä" in 1889-1897. At the same time he studied the Russian language in a three-years municipal school.
Document 3: When Love Grows Cold: When Love Grows Cold is a lost 1926 American silent drama film directed by Harry O. Hoyt, and starring Clive Brook and Natacha Rambova in her only screen starring performance. Rambova was chiefly famous for being the wife of Rudolph Valentino. The film was originally titled "Do Clothes Make the Woman?" But in view of Valentino's recent divorce from Rambova, the distributor took the opportunity to bill her as 'Mrs Valentino' and changed the title to "When Love Grows Cold". She was mortally offended and never worked in film again.
Document 4: 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 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: James Michael Pratt: James Michael Pratt is an American writer and documentary film producer. He is listed as a bestselling author by "The New York Times" and "USA Today". His novel "The Lost Valentine" (originally published as "The Last Valentine") was adapted into a film released by Hallmark Hall of Fame in 2011. He has been called a "Master of moral fiction"by Booklist for his realistic depictions of love and life during wartime while weaving valued inspirational themes with subtlety. The author has 7 other titles listed at his website including The Lost Valentine. A native of Simi Valley, CA he is married and the father of two adult children. He credits growing up in California for many of the influences found in his stories. He has three additional books being adapted to film including a new title, yet to be released, When the Last Leaf Falls."
Document 7: 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 8: Mansur Kamaletdinov: Kamaletdinov was born in Zlatoust, Russia and spent his early childhood in a village near Ufa, Bashkiria, which by coincidence is the same village where the great dancer Rudolf Nureyev grew up.
Document 9: 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 10: Gavriil Kamenev: Kamenev was born on 3 February 1772 in Kazan and lived there in adverse circumstances (he was not good at business and was unhappily married), his only bright moments being brief visits to Moscow. He had attended a boarding school, but was essentially self-educated.
Document 11: Valentino (1977 film): Valentino is a 1977 American biographical film directed by Ken Russell and starring Rudolf Nureyev as Rudolph Valentino. The film is very loosely based on the life of Valentino as recounted in the book "Valentino, an Intimate Exposé of the Sheik", written by Chaw Mank and Brad Steiger. The film also stars Michelle Phillips, Leslie Caron, and Carol Kane.
Document 12: Mimi Kuzyk: Kuzyk was born in Winnipeg, Manitoba to Fred and Kay Kuzyk, both of whom are Ukrainian immigrants, and received her early education at the Immaculate Heart of Mary School. She danced with the Rusalka Ukrainian dance group in Winnipeg for 12 years and briefly studied jazz dance at the Royal Winnipeg Ballet School.
Document 13: Nazi Love Camp 27: Nazi Love Camp 27 (Italian: La svastica nel ventre) is a 1977 Italian Nazi exploitation film by western director Mario Caiano starring Sirpa Lane. The film is notable for its truly grim scenes, dramatic plot and hardcore sex scenes.
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: La Valentina (1938 film): La Valentina is a Mexican musical drama film directed by Martín de Lucenay and starring Jorge Negrete and Esperanza Baur. The film was remade in 1966 as "La Valentina" starring María Félix and Eulalio González.
ground_truth: Boris Yeltsin
sub_queries: Valentino >> cast member Answer: Rudolf Nureyev
Rudolf Nureyev >> country of citizenship Answer: Russia
Who was in charge of Russia ? Answer: Boris Yeltsin