Question: What language is spoken by the choreographer of Chopiniana?

full_context: Document 1: 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 2: Frédéric Chopin: At the funeral of the tenor Adolphe Nourrit in Paris in 1839, Chopin made a rare appearance at the organ, playing a transcription of Franz Schubert's lied Die Gestirne. On 26 July 1840 Chopin and Sand were present at the dress rehearsal of Berlioz's Grande symphonie funèbre et triomphale, composed to commemorate the tenth anniversary of the July Revolution. Chopin was reportedly unimpressed with the composition.
Document 3: The Fountain of Bakhchisarai (ballet): The Fountain of Bakhchisarai (Russian: Бахчисарайский фонтан) is a full-length ballet in four acts, choreographed by Rostislav Zakharov to music by Boris Asafyev. The libretto by Nikolai Volkov is based on the 1823 poem of the same title by Alexander Pushkin. The ballet premiered on 28 September 1934 at the Kirov Academic Theatre of Opera and Ballet, with Galina Ulanova as Maria, Olga Iordan as Zarema, Mikhail Dudko as Khan Girey, and Konstantin Sergeyev as Vaslav.
Document 4: Vera de Bosset: Vera de Bosset Stravinsky (January 7, 1889 – September 17, 1982) was a Russian-born American dancer and artist. She is better known as the mistress and, ultimately, second wife of the Russian composer Igor Stravinsky, who married her in 1940.
Document 5: 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 6: The Firebird: The Firebird (; ) is a ballet and orchestral concert work by the Russian composer Igor Stravinsky. It was written for the 1910 Paris season of Sergei Diaghilev's Ballets Russes company; the original choreography was by Michel Fokine, with a scenario by Alexandre Benois and Fokine based on the Russian fairy tales of the Firebird and the blessing and curse it possesses for its owner. When first performed at the Opéra de Paris on 25 June 1910, the work was an instant success with both audience and critics.
Document 7: The Firebird: The Firebird (French: L'Oiseau de feu; Russian: Жар - птица, translit. Zhar - ptitsa) is a ballet and orchestral concert work by the Russian composer Igor Stravinsky. It was written for the 1910 Paris season of Sergei Diaghilev's Ballets Russes company; the original choreography was by Michel Fokine, with a scenario by Alexandre Benois and Fokine based on the Russian fairy tales of the Firebird and the blessing and curse it possesses for its owner. When first performed at the Opéra de Paris on 25 June 1910, the work was an instant success with both audience and critics.
Document 8: 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 9: Flight of the Bumblebee: ``Flight of the Bumblebee ''is an orchestral interlude written by Nikolai Rimsky - Korsakov for his opera The Tale of Tsar Saltan, composed in 1899 -- 1900. Its composition is intended to musically evoke the seemingly chaotic and rapidly changing flying pattern of a bumblebee. Despite the piece's being a rather incidental part of the opera, it is today one of the more familiar classical works because of its frequent use in popular culture.
Document 10: Flight of the Bumblebee: ``Flight of the Bumblebee ''is an orchestral interlude written by Nikolai Rimsky Korsakov for his opera The Tale of Tsar Saltan, composed in 1899 -- 1900. Its composition is intended to musically evoke the seemingly chaotic and rapidly changing flying pattern of a bumblebee. Despite the piece's being a rather incidental part of the opera, it is today one of the more familiar classical works because of its frequent use in popular culture.
Document 11: Frédéric Chopin: All of Chopin's compositions include the piano. Most are for solo piano, though he also wrote two piano concertos, a few chamber pieces, and some songs to Polish lyrics. His keyboard style is highly individual and often technically demanding; his own performances were noted for their nuance and sensitivity. Chopin invented the concept of instrumental ballade. His major piano works also include mazurkas, waltzes, nocturnes, polonaises, études, impromptus, scherzos, preludes and sonatas, some published only after his death. Influences on his compositional style include Polish folk music, the classical tradition of J. S. Bach, Mozart and Schubert, the music of all of whom he admired, as well as the Paris salons where he was a frequent guest. His innovations in style, musical form, and harmony, and his association of music with nationalism, were influential throughout and after the late Romantic period.
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: Frédéric Chopin: Chopin also endowed popular dance forms with a greater range of melody and expression. Chopin's mazurkas, while originating in the traditional Polish dance (the mazurek), differed from the traditional variety in that they were written for the concert hall rather than the dance hall; "it was Chopin who put the mazurka on the European musical map." The series of seven polonaises published in his lifetime (another nine were published posthumously), beginning with the Op. 26 pair (published 1836), set a new standard for music in the form. His waltzes were also written specifically for the salon recital rather than the ballroom and are frequently at rather faster tempos than their dance-floor equivalents.
Document 14: Rusalka (Dargomyzhsky): Rusalka () is an opera in four acts, six tableaux, by Alexander Dargomyzhsky, composed during 1848-1855. The Russian libretto was adapted by the composer from Pushkin's incomplete dramatic poem of the same name. It premiered on 4 May 1856 (Old Style) at the Theatre-circus, conducted by Konstantin Lyadov (father of Anatoly Lyadov), choreographed by Marius Petipa and Nikolay Goltz, but was badly received predominantly by the aristocracy.
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: Russian
sub_queries: Who choreographed Chopiniana? Answer: Michel Fokine
Michel Fokine >> languages spoken, written or signed Answer: Russian