Question: What language was used by the screenwriter of Jolly Fellows?

full_context: Document 1: Flight (play): Flight is a play by Russian writer Mikhail Bulgakov. It is set during the end of the Russian Civil War, when the remnants of the White Army are desperately resisting the Red Army on the Crimean isthmus. The lives of the abandoned Serafima Korzukhina, the university professor Sergei Golubkov and the White generals Charnota and Khludov are closely intertwined.
Document 2: The Apple War: The songs in "The Apple War" are composed and written by Evert Taube, who also makes a cameo in the film as the old man who dances with Monica Zetterlund at the end party, and while there also recites a part of one of his most famous songs, "Calle Schewens vals", performed by the cast in the same scene at the end. Winner of three Guldbagge Awards, "The Apple War" is a popular cult film in Sweden, and referred to as a "Hasse & Tage" film due to the creators Tage Danielsson and Hasse Alfredson.
Document 3: Theatrical Novel: Theatrical Novel (also A Dead Man's Memoir) is an unfinished novel by Mikhail Bulgakov. Written in first-person, on behalf of a writer Sergei Maksudov, the novel tells of the drama behind-the-scenes of a theatre production and the writers' world.
Document 4: State Anthem of the Soviet Union: Slav'sya, Otechestvo nashe svobodnoye! (Russian: Славься, Отечество наше свободное!; Slav'sya, Otechestvo nashe svobodnoye!, lit. ``Be glorious, our free Fatherland! ''), officially known as the`` State Anthem of the Soviet Union'' (Russian: Государственный гимн СССР, tr. Gosudarstvenny Gimn SSSR) was introduced during World War II on 15 March 1944, replacing The Internationale as the official anthem of the Soviet Union and the Russian Soviet Federative Socialist Republic. The lyrics were written by Sergey Mikhalkov (1913 -- 2009) in collaboration with Gabriel El - Registan (1899 -- 1945) and the music was composed by Alexander Alexandrov (1883 -- 1946). Although the Soviet Union was dissolved in 1991, its national anthem's melody continues to be used in the Russian Federation's national anthem, which has different lyrics to the version used in the Soviet Union.
Document 5: 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 6: Jolly Fellows: The script was written by Aleksandrov, Vladimir Mass, and Nikolai Erdman (whose father briefly appears on screen as a German music teacher). It features several songs which instantly became classics across the Soviet Union. The most famous song — "Kak mnogo devushek khoroshikh" ("Such a lot of nice girls") — enjoyed international fame, covered as "Serdtse" ("Heart") by Pyotr Leshchenko. Music was by Isaak Dunayevsky, the lyrics were written by the Soviet poet Vasily Lebedev-Kumach.
Document 7: Siranush: After the Turkish sultan issued a decree banning Armenian plays in Turkey in 1878, Siranush moved to Tiflis (nowadays Tbilisi) and worked in the local Armenian theater companies. She then moved on to other Armenian-populated residences and often managed her own theatre companies. She occasionally joined Constantinople-based Armenian theater companies and more often played the major roles in the plays put on in Tiflis and Baku. After the death of renowned Armenian actor Petros Adamyan, Siranush became the bright individual who sparked interest among Armenian spectators towards theater again.
Document 8: Oleg Bogayev: Oleg Bogayev was born in 1970 in the city of Sverdlovsk (now called Yekaterinburg) in Russia. He writes of growing up as the Cold War gave way to the emergence of Perestroika, a "change from the decay of the empire to the birth of a new society." He cites the social turmoil of recent decades as useful for artistic product: "[What] I know is that Russia is just the right place for a playwright - with shattering of fates, conflicts, crumbling of hopes, clashes of ideas - all that I've seen and experienced."
Document 9: Trial on the Road: "Trial on the Road" was censored and taken out of circulation in the Soviet Union for 15 years after its release due to its controversial depiction of Soviet soldiers. The film is based on a story by the director's father, Yuri German. The screenplay was written by Eduard Volodarsky.
Document 10: Deknni: One of the most famous Deknni songs is "Hanv Saiba Poltodi Vetam" by Carlos Eugenio Ferreira (1860–1926) first published in Paris in 1895 and then in Goa in 1926. The song was adapted by Raj Kapoor as "Na mangoon sona chandi" in his Hindi movie Bobby. The story that is depicted in this song is about two temple dancers who want to go for Damu's wedding and they approach the boatman to ferry them across the river. The boatman says, "No! The river is rough!" The dancers offer the boatman their gold jewellery; but the boatman is still firm. "No!" he says. So the dancers dance for the boatman and this time he ferries them across the river.
Document 11: Wooden Heart: "Wooden Heart", created by Fred Wise, Ben Weisman, Kay Twomey and German bandleader Bert Kaempfert, was based on a German folk song by Friedrich Silcher, "Muss i denn", originating from the Rems Valley in Württemberg, southwest Germany. "Wooden Heart" features several lines from the original folk song, written in the German Swabian dialect, as spoken in Württemberg. Marlene Dietrich recorded a version of the song sometime before 1958, pre-dating Presley, in the original German language, which appears as a B-side on a 1959 version of her single "Lili Marlene", released by Philips in association with Columbia Records. The Elvis Presley version was published by Gladys Music, Elvis Presley's publishing company. Bobby Vinton recorded his version in 1975 with those lines translated into Polish.
Document 12: The Song of the Rivers: The Song of the Rivers () is a 1954 documentary film production by the East Germany film studio DEFA. Dutch filmmaker Joris Ivens was the leading director. The sprawling film celebrates international workers movements along six major rivers: the Volga, Mississippi, Ganges, Nile, Amazon and the Yangtze. Shot in many countries by different film crews, and later edited by Ivens, Song of the Rivers begins with a lyrical montage of landscapes and laborers and proceeds to glorify labor and modern industrial machinery. The musical score is by Dmitri Shostakovich, with lyrics written by Berthold Brecht, and songs performed by German communism's star Ernst Busch and famous American actor, singer and activist Paul Robeson who also narrates. "Song of the Rivers" is an ode to "international solidarity".
Document 13: Natasha, Pierre & The Great Comet of 1812: Natasha, Pierre & The Great Comet of 1812 is a sung - through musical adaptation of a segment of Leo Tolstoy's War and Peace written by composer / lyricist Dave Malloy and directed by Rachel Chavkin. It is based on Volume 2, Part 5 of Tolstoy's novel, focusing on Natasha's affair with Anatole and Pierre's search for meaning in his life.
Document 14: Death and the King's Horseman: Death and the King's Horseman is a play by Wole Soyinka based on a real incident that took place in Nigeria during British colonial rule: the horseman of a Yoruba King was prevented from committing ritual suicide by the colonial authorities. In addition to the British intervention, Soyinka calls the horseman's own conviction toward suicide into question, posing a problem that throws off the community's balance.
Document 15: The Suicide (play): The Suicide is a 1928 play by the Russian playwright Nikolai Erdman. Its performance was proscribed during the Stalinist era and it was only produced in Russia several years after the death of its writer. Today it is regarded as one of the finest plays to have come out of Communist Russia.
ground_truth: Russian
sub_queries: Jolly Fellows >> screenwriter Answer: Nikolai Erdman
Nikolai Erdman >> languages spoken, written or signed Answer: Russian