Question: What did the Thuringian miners do to help the country for Krokodil?

full_context: Document 1: Thuringia: Thuringia's leading research centre is Jena, followed by Ilmenau. Both focus on technology, in particular life sciences and optics at Jena and information technology at Ilmenau. Erfurt is a centre of Germany's horticultural research, whereas Weimar and Gotha with their various archives and libraries are centres of historic and cultural research. Most of the research in Thuringia is publicly funded basic research due to the lack of large companies able to invest significant amounts in applied research, with the notable exception of the optics sector at Jena.
Document 2: Nedjeljni Jutarnji: Nedjeljni Jutarnji is the weekly Sunday edition of "Jutarnji list", one of the two prominent dailies in Croatia. "Nedjeljni" is principally concerned with life, culture, politics and style. Founded by Tomislav Wruss in 2003 in the long tradition of Croatian Sunday papers such as Nedjeljna Dalmacija, it was brasher and less polite than the daily edition of "Jutarnji".
Document 3: Krokodil: Krokodil (, "crocodile") was a satirical magazine published in the Soviet Union. It was founded in 1922, at first as the satirical supplement to the "Workers' Gazette" (called simply «Приложения» [Supplement]); when it became a separate publication, the name 'Crocodile' was chosen at an editorial meeting from among a list of suggested animal names. At that time, a large number of satirical magazines existed, such as "Zanoza" and "Prozhektor". Nearly all of them eventually disappeared.
Document 4: Znamya: Znamya (, lit. "The Banner") is a Russian monthly literary magazine, which was established in Moscow in 1931. In 1931-1932, the magazine was published under the name of "Lokaf" ("Локаф", which was an abbreviation of "Литературное объединение писателей Красной Армии и флота", or Literary Association of Writers of the Red Army and Fleet). During the Soviet times, "Znamya" dedicated most of its pages to short stories and novels about the military, publishing works by Konstantin Simonov, Vasily Grossman, Pavel Antokolsky and others. "Znamya" has different sections dedicated to prose, poetry, essays, literary criticism, bibliography etc. In 1972, the magazine had a circulation of some 160,000 copies.
Document 5: Le Crapouillot: Le Crapouillot was a French magazine started by Jean Galtier-Boissière as a satiric publication in France, during World War I. In the trenches during World War I, the affectionate term for "le petit crapaud", "the little toad" was used by French soldiers, the "poilus", to designate small trench-mortars.
Document 6: Thuringia: The GDP of Thuringia is below the national average, in line with the other former East German Lands. Until 2004, Thuringia was one of the weakest regions within the European Union. The accession of several new countries, the crisis in southern Europe and the sustained economic growth in Germany since 2005 has brought the Thuringian GDP close to the EU average since then. The high economic subsidies granted by the federal government and the EU after 1990 are being reduced gradually and will end around 2020.
Document 7: Die Pleite: Die Pleite was a German periodical founded and edited by George Grosz, Wieland Herzfelde, and John Heartfield, which ran from 1919 to 1924. The magazine was part of the Berlin Dada scene and was known for its ruthless critiques of the Weimar Republic in addition to its prescient awareness of the emergence of right-wing extremism throughout Europe.
Document 8: Sodobnost: Sodobnost (Slovene for "Modernity" or "Contemporary Time") is a Slovenian literary and cultural magazine, established in 1933. It is considered the oldest of currently existing literary magazines in Slovenia. Although "Sodobnost" has traditionally been a magazine focused on cultural and literary issues, it nowadays covers a wide range of current affairs. It is part of the Eurozine editorial project.
Document 9: Thuringia: Mining was important in Thuringia since the later Middle Ages, especially within the mining towns of the Thuringian Forest such as Schmalkalden, Suhl and Ilmenau. Following the industrial revolution, the old iron, copper and silver mines declined because the competition from imported metal was too strong. On the other hand, the late 19th century brought new types of mines to Thuringia: the lignite surface mining around Meuselwitz near Altenburg in the east of the Land started in the 1870s, and two potash mining districts were established around 1900. These are the Südharzrevier in the north of the state, between Bischofferode in the west and Roßleben in the east with Sondershausen at its centre, and the Werrarevier on the Hessian border around Vacha and Bad Salzungen in the west. Together, they accounted for a significant part of the world's potash production in the mid-20th century. After the reunification, the Südharzrevier was abandoned, whereas K+S took over the mines in the Werrarevier. Between 1950 and 1990, uranium mining was also important to cover the Soviet Union's need for this metal. The centre was Ronneburg near Gera in eastern Thuringia and the operating company Wismut was under direct Soviet control.
Document 10: The Crocodile (short story): "The Crocodile" (, "Krokodil") is a short story by Fyodor Dostoyevsky that was first published in 1865 in his magazine "Epoch.
Document 11: Thuringia: The traditional energy supply of Thuringia is lignite, mined in the bordering Leipzig region. Since 2000, the importance of environmentally unfriendly lignite combustion has declined in favour of renewable energies, which reached an amount of 40% (in 2013), and more clean gas combustion, often carried out as Cogeneration in the municipal power stations. The most important forms of renewable energies are Wind power and Biomass, followed by Solar energy and Hydroelectricity. Furthermore, Thuringia hosts two big pumped storage stations: the Goldisthal Pumped Storage Station and the Hohenwarte Dam.
Document 12: Thuringia: Due to many centuries of intensive settlement, most of the area is shaped by human influence. The original natural vegetation of Thuringia is forest with beech as its predominant species, as can still be found in the Hainich mountains today. In the uplands, a mixture of beech and spruce would be natural. However, most of the plains have been cleared and are in intensive agricultural use while most of the forests are planted with spruce and pine. Since 1990, Thuringia's forests have been managed aiming for a more natural and tough vegetation more resilient to climate change as well as diseases and vermin. In comparison to the forest, agriculture is still quite conventional and dominated by large structures and monocultures. Problems here are caused especially by increasingly prolonged dry periods during the summer months.
Document 13: Thuringia: Health care in Thuringia is currently undergoing a concentration process. Many smaller hospitals in the rural towns are closing, whereas the bigger ones in centres like Jena and Erfurt get enlarged. Overall, there is an oversupply of hospital beds, caused by rationalisation processes in the German health care system, so that many smaller hospitals generate losses. On the other hand, there is a lack of family doctors, especially in rural regions with increased need of health care provision because of overageing.
Document 14: Thuringia: Environmental damage in Thuringia has been reduced to a large extent after 1990. The condition of forests, rivers and air was improved by modernizing factories, houses (decline of coal heating) and cars, and contaminated areas such as the former Uranium surface mines around Ronneburg have been remediated. Today's environmental problems are the salination of the Werra river, caused by discharges of K+S salt mines around Unterbreizbach and overfertilisation in agriculture, damaging the soil and small rivers.
Document 15: Vokrug sveta: Vokrug sveta (, literally: "Around the World") is a Russian geographic magazine. It is the longest running magazine in the Russian language. The first issue was printed in Saint Petersburg, in December 1861, almost thirty years before the establishment of the "National Geographic Magazine". Thus, it is one of the oldest popular science magazines in the world. Release of "Vokrug sveta" was suspended twice: from 1918 to 1927, during the Russian Revolution, and from 1941 to 1945, during World War II. Nevertheless, the magazine always resumed and continues to be published to this day.
ground_truth: uranium mining was also important to cover the Soviet Union's need for this metal
sub_queries: Which was the country for Krokodil? Answer: Soviet Union
What did the Thuringian miners do to help Soviet Union ? Answer: uranium mining was also important to cover the Soviet Union's need for this metal