Question: What is the body of water by the city where Artur Mahraun was born?

full_context: Document 1: Kassel-Wilhelmshöhe station: Kassel-Wilhelmshöhe is a railway station in the city of Kassel, in the German state of Hesse. It is the city's most important railway station, as it is connected to the Hanover-Würzburg high-speed rail line, with InterCityExpress services calling at the station.
Document 2: Kurt Wahle: General Wahle, who had first joined the Prussian army in 1867, was the oldest combatant of any nation in World War I.
Document 3: East Prussia: At the beginning of World War I, East Prussia became a theatre of war when the Russian Empire invaded the country. The Russian Army encountered at first little resistance because the bulk of the German Army had been directed towards the Western Front according to the Schlieffen Plan. Despite early success and the capture of the towns of Rastenburg and Gumbinnen, in the Battle of Tannenberg in 1914 and the Second Battle of the Masurian Lakes in 1915, the Russians were decisively defeated and forced to retreat. The Russians were followed by the German Army advancing into Russian territory.
Document 4: Fredrik Bajer: He was son of a clergyman born in Næstved in 1837. Bajer served as an officer in the Danish army, fighting in the 1864 war against Prussia and Austria where he was promoted to the rank of first lieutenant. He was discharged in 1865, and moved to Copenhagen where he became a teacher, translator and writer.
Document 5: Artur Mahraun: Artur Mahraun (30 December 1890 – 29 March 1950) was the founder and leader of the Young German Order ("Jungdeutscher Orden" or Jungdo) and an early contender for the leadership of the far right youth in Weimar Germany.
Document 6: Kassel: Kassel (; spelled Cassel until 1928) is a city located on the Fulda River in northern Hesse, Germany. It is the administrative seat of the Regierungsbezirk Kassel and the district of the same name and had 200,507 inhabitants in December 2015. The former capital of the state of Hesse-Kassel has many palaces and parks, including the Bergpark Wilhelmshöhe, which is a UNESCO World Heritage Site. Kassel is also known for the "documenta" exhibitions of contemporary art. Kassel has a public university with 25,000 students (2018) and a multicultural population (39% of the citizens in 2017 had a migration background).
Document 7: Klarenthal: Klarenthal is a borough of Wiesbaden, capital of the federal state of Hesse, Germany. The community, situated on the slopes of the Taunus Mountains, was planned by architect and urban planner Ernst May in the style of a commuter town in the early 1960s. It was built on free arable land between the railway line to Bad Schwalbach and Klarenthaler Straße, overlooking the city center of Wiesbaden proper. Klarenthal consists mainly of large multi-family homes and residential high-rise buildings, surrounded with lots of green space, as well as many townhouses. The ground-breaking ceremony was held on September 11, 1964 and the first residents moved in in late February 1966. Today, over 10,000 people live there.
Document 8: Auestadion: Auestadion is a multi-use stadium in Kassel, Germany close to the Karlsaue park. It is used mostly for football matches and is the home stadium of KSV Hessen Kassel. The stadium is able to hold 18000 people. It was opened on 23 August 1953, and renovated between 1983-1993 and between 2006-2008.
Document 9: Fuldabrück: Fuldabrück is a municipality in the district of Kassel, in Hesse, Germany. It is situated along the Fulda river, 8 kilometers south of Kassel. The municipality of Fuldabrück consists of the former independent villages Bergshausen, Dittershausen, Dennhausen and Dörnhagen.
Document 10: Artur Mahraun: Born the son of a privy councillor in Kassel, Mahraun became a career soldier with the Prussian Army when he enlisted in the Prussian Infantry Regiment No. 83 in 1908. He served with distinction on the Eastern Front during First World War.
Document 11: Karl von Reyher: Karl Friedrich Wilhelm Reyher (from 1828 von Reyher) (21 June 1786, in Groß Schönebeck – 7 October 1857, in Berlin) was a Prussian officer who served as Prussian Minister of War in the government of Gottfried Ludolf Camphausen during the Revolution of 1848. After 1848 he also served as Prussian chief of staff.
Document 12: Botanischer Garten Kassel: The Botanischer Garten Kassel, also known as the Botanischer Garten der Stadt Kassel, is a municipal botanical garden located in the Park Schönfeld at Bosestraße 15, Kassel, Hesse, Germany. It is open daily without charge.
Document 13: Christian Karl August Ludwig von Massenbach: Christian Karl August Ludwig von Massenbach (April 16, 1758 – November 21, 1827), Prussian soldier, was born at Schmalkalden, and educated at Heilbronn and Stuttgart, devoting himself chiefly to mathematics.
Document 14: Strasbourg: Strasbourg, well known as centre of humanism, has a long history of excellence in higher-education, at the crossroads of French and German intellectual traditions. Although Strasbourg had been annexed by the Kingdom of France in 1683, it still remained connected to the German-speaking intellectual world throughout the 18th century and the university attracted numerous students from the Holy Roman Empire, including Goethe, Metternich and Montgelas, who studied law in Strasbourg, among the most prominent. Nowadays, Strasbourg is known to offer among the best university courses in France, after Paris.
Document 15: Thuringia: The German higher education system comprises two forms of academic institutions: universities and polytechnics (Fachhochschule). The University of Jena is the biggest amongst Thuringia's four universities and offers nearly every discipline. It was founded in 1558, and today has 21,000 students. The second-largest is the Technische Universität Ilmenau with 7,000 students, founded in 1894, which offers many technical disciplines such as engineering and mathematics. The University of Erfurt, founded in 1392, has 5,000 students today and an emphasis on humanities and teacher training. The Bauhaus University Weimar with 4,000 students is Thuringia's smallest university, specialising in creative subjects such as architecture and arts. It was founded in 1860 and came to prominence as Germany's leading art school during the inter-war period, the Bauhaus.
ground_truth: Fulda
sub_queries: Artur Mahraun >> place of birth Answer: Kassel
Which is the body of water by Kassel ? Answer: Fulda