Question: How high is the highest point in the city where Édouard de Reszke's was born?

full_context: Document 1: Warsaw: The flora of the city may be considered very rich in species. The species richness is mainly due to the location of Warsaw within the border region of several big floral regions comprising substantial proportions of close-to-wilderness areas (natural forests, wetlands along the Vistula) as well as arable land, meadows and forests. Bielany Forest, located within the borders of Warsaw, is the remaining part of the Masovian Primeval Forest. Bielany Forest nature reserve is connected with Kampinos Forest. It is home to rich fauna and flora. Within the forest there are three cycling and walking trails. Other big forest area is Kabaty Forest by the southern city border. Warsaw has also two botanic gardens: by the Łazienki park (a didactic-research unit of the University of Warsaw) as well as by the Park of Culture and Rest in Powsin (a unit of the Polish Academy of Science).
Document 2: Emil Pollert: Emil Pollert, born Emil Popper (20 January 1877, Liblice at Mělník – 23 October 1935, Prague) was a Czech opera singer at the National Theatre in Prague, in his time the main representative of bass roles.
Document 3: John Relyea: John Relyea is a 1998 graduate of the Curtis Institute of Music in Philadelphia. He studied with his father, with renowned opera bass Jerome Hines, and with bass-baritone Edward Zambara. John Relyea has performed with major symphony companies across the country, such as the New York Philharmonic, Santa Fe Opera, Seattle Opera and the Metropolitan Opera in addition to the Swedish Radio Symphony Orchestra.
Document 4: Warsaw: Today, Warsaw has some of the best medical facilities in Poland and East-Central Europe. The city is home to the Children's Memorial Health Institute (CMHI), the highest-reference hospital in all of Poland, as well as an active research and education center. While the Maria Skłodowska-Curie Institute of Oncology it is one of the largest and most modern oncological institutions in Europe. The clinical section is located in a 10-floor building with 700 beds, 10 operating theatres, an intensive care unit, several diagnostic departments as well as an outpatient clinic. The infrastructure has developed a lot over the past years.
Document 5: Warsaw: Warsaw was occupied by Germany from 4 August 1915 until November 1918. The Allied Armistice terms required in Article 12 that Germany withdraw from areas controlled by Russia in 1914, which included Warsaw. Germany did so, and underground leader Piłsudski returned to Warsaw on 11 November and set up what became the Second Polish Republic, with Warsaw the capital. In the course of the Polish-Bolshevik War of 1920, the huge Battle of Warsaw was fought on the eastern outskirts of the city in which the capital was successfully defended and the Red Army defeated. Poland stopped by itself the full brunt of the Red Army and defeated an idea of the "export of the revolution".
Document 6: Jozsef Gregor: József Gregor (8 August 1940 - 27 October 2006) was a renowned Hungarian bass-baritone/basso buffo who enjoyed success first in Hungary, then in France, Belgium and Canada, and finally in the United States. József Gregor was born in Rákosliget, a small town that is now part of Budapest. He studied violin for ten years and then, voice at the Liszt Academy in Budapest for one year but did not graduate. He started singing with the Hungarian Army chorus in 1958 before becoming a soloist in National Theatre of Szeged in Hungary. In Europe he sang in many opera houses, including Vlaamse Opera and La Scala in Milan. Beginning in 1989, József Gregor appeared in the US with the Portland Opera and later with the Houston Grand Opera (with Cecilia Bartoli at her American debut) and the Metropolitan Opera (with Bryn Terfel). His most famous roles included Sarastro, Osmin, Falstaff, Don Pasquale, Dulcamara, Don Basilio, Don Bartolo, Don Magnifico, Boris Godunov, Varlaam, Philip II, Bluebeard etc., roles in masses and oratorios, musicals (Tevye, Caiaphas), and songs. He died in Szeged of gastric cancer.
Document 7: Warsaw: Warsaw (Polish: Warszawa [varˈʂava] ( listen); see also other names) is the capital and largest city of Poland. It stands on the Vistula River in east-central Poland, roughly 260 kilometres (160 mi) from the Baltic Sea and 300 kilometres (190 mi) from the Carpathian Mountains. Its population is estimated at 1.740 million residents within a greater metropolitan area of 2.666 million residents, which makes Warsaw the 9th most-populous capital city in the European Union. The city limits cover 516.9 square kilometres (199.6 sq mi), while the metropolitan area covers 6,100.43 square kilometres (2,355.39 sq mi).
Document 8: Bernard Ładysz: Bernard Ładysz (born 24 July 1922, Wilno, then Poland) is a Polish opera singer (bass-baritone) and actor. His recordings include "Lucia di Lammermoor" (with Maria Callas) and "The Devils of Loudon" (with Tatiana Troyanos).
Document 9: Warsaw: One of the most famous people born in Warsaw was Maria Skłodowska-Curie, who achieved international recognition for her research on radioactivity and was the first female recipient of the Nobel Prize. Famous musicians include Władysław Szpilman and Frédéric Chopin. Though Chopin was born in the village of Żelazowa Wola, about 60 km (37 mi) from Warsaw, he moved to the city with his family when he was seven months old. Casimir Pulaski, a Polish general and hero of the American Revolutionary War, was born here in 1745.
Document 10: Warsaw: Warsaw lies in east-central Poland about 300 km (190 mi) from the Carpathian Mountains and about 260 km (160 mi) from the Baltic Sea, 523 km (325 mi) east of Berlin, Germany. The city straddles the Vistula River. It is located in the heartland of the Masovian Plain, and its average elevation is 100 metres (330 ft) above sea level. The highest point on the left side of the city lies at a height of 115.7 metres (379.6 ft) ("Redutowa" bus depot, district of Wola), on the right side – 122.1 metres (400.6 ft) ("Groszówka" estate, district of Wesoła, by the eastern border). The lowest point lies at a height 75.6 metres (248.0 ft) (at the right bank of the Vistula, by the eastern border of Warsaw). There are some hills (mostly artificial) located within the confines of the city – e.g. Warsaw Uprising Hill (121 metres (397.0 ft)), Szczęśliwice hill (138 metres (452.8 ft) – the highest point of Warsaw in general).
Document 11: Édouard de Reszke: Édouard de Reszke, originally Edward, (22 December 185325 May 1917) was a Polish bass from Warsaw. Born with an impressive natural voice and equipped with compelling histrionic skills, he became one of the most illustrious opera singers active in Europe and America during the late-Victorian era.
Document 12: Dezső Ernster: Dezső Ernster (23 November 1898 – 15 February 1981) was a Hungarian opera singer who sang leading bass roles with the New York Metropolitan Opera from 1946 to 1963. In 1929, he created the role of Baron d'Houdoux in Hindemith's "Neues vom Tage".
Document 13: Warsaw: Warsaw's name in the Polish language is Warszawa, approximately /vɑːrˈʃɑːvə/ (also formerly spelled Warszewa and Warszowa), meaning "belonging to Warsz", Warsz being a shortened form of the masculine name of Slavic origin Warcisław; see also etymology of Wrocław. Folk etymology attributes the city name to a fisherman, Wars, and his wife, Sawa. According to legend, Sawa was a mermaid living in the Vistula River with whom Wars fell in love. In actuality, Warsz was a 12th/13th-century nobleman who owned a village located at the modern-day site of Mariensztat neighbourhood. See also the Vršovci family which had escaped to Poland. The official city name in full is miasto stołeczne Warszawa (English: "The Capital City of Warsaw"). A native or resident of Warsaw is known as a Varsovian – in Polish warszawiak (male), warszawianka (female), warszawiacy (plural).
Document 14: Agnieszka Truskolaska: Agnieszka Marianna Truskolaska (1755 – 30 November 1831) was a Polish actress, opera singer and theatre director. She was one of the most admired female artists of her time in Poland.
Document 15: Warsaw: The city is the seat of a Roman Catholic archdiocese (left bank of the Vistula) and diocese (right bank), and possesses various universities, most notably the Polish Academy of Sciences and the University of Warsaw, two opera houses, theatres, museums, libraries and monuments. The historic city-centre of Warsaw with its picturesque Old Town in 1980 was listed as a UNESCO World Heritage Site. Other main architectural attractions include the Castle Square with the Royal Castle and the iconic King Sigismund's Column, St. John's Cathedral, Market Square, palaces, churches and mansions all displaying a richness of colour and architectural detail. Buildings represent examples of nearly every European architectural style and historical period. Warsaw provides many examples of architecture from the gothic, renaissance, baroque and neoclassical periods, and around a quarter of the city is filled with luxurious parks and royal gardens.
ground_truth: 115.7 metres
sub_queries: What is Édouard de Reszke's birthplace? Answer: Warsaw
How high is the highest point in Warsaw ? Answer: 115.7 metres