Question: Vladimir Yaroshenko was a soloist with the choreographer who dominated Russian ballet for how many years?

full_context: Document 1: Valery Kritskov: Valery Kritskov is a Russian conductor who used to take conducting lessons at the Moscow Institute of Culture which were taught by Kirill Tikhonov. He graduated from there in 1988 and then worked in Moscow-based Helikon Opera till he got employed with Novaya Opera in 2002. While there, he conducted many operas including Nikolai Rimsky-Korsakov's "The Snow Maiden" and "The Tsar’s Bride" as well as Anton Rubinstein's "The Demon" and Tchaikovsky's "The Maid of Orleans". He also conducted works by the Italian composers such as Pietro Mascagni's "Cavalleria rusticana" and Ruggero Leoncavallo's "Pagliacci" and German such as Richard Wagner's "Lohengrin" and Strauss' "Die Fledermaus" as well as a concert dedicated to Vincenzo Bellini. Besides operas, he is also known for his conducting of the Russian ballet based on works by Tchaikovsky and Sergei Prokofiev as well as German and Austrian ballet composers such as Ludwig Minkus and Charles Gounod. Later on, he became a conductor of the Coppélia ballet which was based by Léo Delibes work and was produced by Imperial Russian Ballet. Currently he has two CD recordings called "Chorus of the Novaya Opera Theatre of Moscow" and the "Soloists of the Novaya Opera Theatre of Moscow".
Document 2: Valery Lagunov: Lagunov was born on July 2, 1942 in Moscow, Russia. In 1962 he graduated from the Moscow State Choreographic Academy where his teacher was Aleksey Yermolayev, and same year joined Bolshoi Ballet. He first appeared in "Scriabiniana" as "Garland" in 1962 and four next year played in "Sleeping Beauty" as "Prince". In 1966 he played as one of the shepherd boys in "the Nutcracker" and five years later appeared as "Archon" in "Icarus". In 1972 he participated in the "Swan Lake" where he played a role of "Evil genius" and the same year played a role as a "dance teacher" in "Cinderella". Three years later he appeared as "Albrecht" in "Giselle" and by 1976 played a role of "black man" in "Mozart and Salieri". The same year he was named "Merited Artist of the Russian Federation" and also appeared as "Don Juan" in "Love for Love". In 1979 he graduated from the Russian University of Theatre Arts and retired as a dancer in 1983. Since 1996 he teaches such future ballet dancers as Mikhail Lobukhin and Vladislav Lantratov.
Document 3: Irina Dvorovenko: Irina Vladimirovna Dvorovenko (Ukrainian: Ірина Володимирівна Дворовенко ; Russian: Ирина Владимировна Дворовенко ; born 28 August 1973) is a Ukrainian American actress and former principal ballet dancer with the American Ballet Theatre in New York.
Document 4: Vaslav Nijinsky: Vaslav Nijinsky (also Vatslav; Russian: Ва́цлав Фоми́ч Нижи́нский ; ] ; Polish: "Wacław Niżyński" ; 12 March 1889/18908 April 1950) was a Russian ballet dancer and choreographer of Polish descent, cited as the greatest male dancer of the early 20th century. He was celebrated for his virtuosity and for the depth and intensity of his characterizations. He could dance "en pointe", a rare skill among male dancers at the time and was admired for his seemingly gravity-defying leaps.
Document 5: Pasha Kovalev: Pavel "Pasha" Kovalev (Russian: Па́вел "Па́ша" Ковалёв ; born 19 January 1980) is a Russian professional latin and ballroom dancer.
Document 6: Artyom Melikhov: Artyom Melikhov is a Russian tenor singer who was born in Saint Petersburg. He graduated from both the Glinka Choral School and Saint Petersburg Conservatory where he was under guidance from Yelizaveta Kudryavtseva till 2006. In 2008 under guidance from Valery Gergiev he played a role of one of the Japanese envoys in "Le Rossignol" opera and during the same year played a soloist role in "Chimes" at the Mariinsky Theatre. In 2009 he had his first appearance with Mariinsky Theatre where he played in an opera called "War and Peace". That year was followed by such 2010 debuts as the "The Mystery of the Apostle Paul" in which he sang in a role of "Nero" at the Mariinsky Theatre and another "War and Peace" performance, this time at the John F. Kennedy Center for the Performing Arts. In 2011 he became the Mariinsky Academy of Young Singers soloist and the same year performed the role of "Ovlur" in an opera called "Prince Igor" following by his appearance in "Dead Souls" and "Ariadne auf Naxos". In May 2013 he was "Rienzi" performer at the Saratov Opera under Alexei Stepanyuk's baton and the same year sang at the Carmina Burana opera after which he went on a tour to Naples where he performed at the Teatro di San Carlo.
Document 7: Vladislav Lantratov: Vladislav Lantratov (Russian: Владислав Валерьевич Лантратов ; 8 October 1988) is a Russian principal dancer in the Bolshoi Ballet.
Document 8: Igor Belsky: Igor Dmitrievich Belsky (Russian: Игорь Дмитриевич Бельский ; 28 March 1925, Saint Petersburg, Russia – 3 July 1999, Saint Petersburg) was a Russian ballet dancer and choreographer. After 20 years of solo work (1942–62) he became a chief choreographer of Maly Theatre (1962–73), artistic director of Kirov Ballet (1973–77), artistic director of Cairo Ballet (1977–78), chief ballet master at the Leningrad Music Hall (1979–92), and artistic director of the Vaganova Academy of Russian Ballet.
Document 9: Vladimir Yaroshenko: Vladimir Yaroshenko (Russian: Владимир Ярошенко; born November 2, 1985 in Slavyansk-na-Kubani) – Polish-Russian ballet dancer, first soloist with Yury Grigorovich’s Ballet Theatre, Krasnodar, trained in classical Russian ballet school. Polish resident since 2007, engaged with Teatr Wielki, Warsaw, where since September 2010 is a first soloist of Polish National Ballet under direction of Krzysztof Pastor.
Document 10: Rudolf Nureyev: Rudolf Khametovich Nureyev (Bashkir: Рудольф Хәмит улы Нуриев , Tatar: Рудольф Хәмит улы Нуриев , Russian: Рудо́льф Хаме́тович Нуре́ев ; 17 March 1938 – 6 January 1993) was a Soviet ballet dancer and choreographer. He was director of the Paris Opera Ballet from 1983 to 1989 and its chief choreographer until October 1992.
Document 11: Yury Grigorovich: Yury Nikolayevich Grigorovich (Russian: Ю́рий Никола́евич Григоро́вич ; born 2 January 1927 in Leningrad) is a Soviet and Russian dancer and choreographer who dominated the Russian ballet for 30 years.
Document 12: Vladimir Yakunin: Vladimir Ivanovich Yakunin (Russian: Владимир Иванович Якунин ; born June 30, 1948 in Melenki, Vladimir Oblast) is a Russian public figure, businessman and former president of Russian Railways (June 2005 – August 2015). In 2012 he was elected chairman of the Union of Railways (UIC) a position he held until 2015. In March 2014 he was placed on the US State Department's list of Russian officials and businessmen sanctioned in the wake the annexation of Crimea. After stepping down as head of Russian Railways he has continued to be engaged in public work as a founder and president of World Public Forum “Dialogue of Civilizations”. In October 2015 he started work on creating an international think tank focused on the search for solutions to help de-escalate tensions across the world. DOC Research Institute was launched in July 2016 in Berlin
Document 13: Vladimir Vasiliev (dancer): Vladimir Viktorovich Vasiliev (Russian: Влади́мир Ви́кторович Васи́льев), born 18 April 1940 in Moscow, Russia, is a Russian ballet dancer and choreographer. He was a principal dancer with the Bolshoi Ballet and its director from 1995 to 2000.
Document 14: Mikhail Baryshnikov: Mikhail Nikolayevich Baryshnikov (Russian: Михаи́л Никола́евич Бары́шников , Latvian: "Mihails Barišņikovs" ; born January 27, 1948), nicknamed "Misha" (Russian diminutive of the name "Mikhail"), is a Soviet and American dancer, choreographer, and actor.
Document 15: Ukraine in the Eurovision Dance Contest: Ukraine took part in the first Eurovision Dance Contest in 2007. Representing the country were Yulia Okropiridze, a student of Kyiv National University of Culture and Arts, and Illya Sydorenko, a professional in ballroom choreography. The dances they performed on the night were Quickstep and Showdance. Ukraine came second after receiving 121 points from all other countries. Ukraine is arguably the most successful country to date, with two top 3 positions, despite not winning yet. Lilia Podkopayeva and Kirilo Hitrov represented the country in the 2008 contest. The Third Eurovision Dance Contest has been cancelled indefinitely.
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