Question: Who wrote the theme song for out of the continent where the river that the Tekeze river turns into?

full_context: Document 1: Nile: The Nile (Arabic: النيل‎, written as al-Nīl; pronounced as an-Nīl) is a major north-flowing river in northeastern Africa, and is the longest river in Africa and the disputed longest river in the world (Brazilian government claims that the Amazon River is longer than the Nile). The Nile, which is about 6,650 km (4,130 mi) long, is an "international" river as its drainage basin covers eleven countries, namely, Tanzania, Uganda, Rwanda, Burundi, the Democratic Republic of the Congo, Kenya, Ethiopia, Eritrea, South Sudan, Republic of the Sudan and Egypt. In particular, the Nile is the primary water source of Egypt and Sudan.The river Nile has two major tributaries, the White Nile and Blue Nile. The White Nile is considered to be the headwaters and primary stream of the Nile itself. The Blue Nile, however, is the source of most of the water and silt. The White Nile is longer and rises in the Great Lakes region of central Africa, with the most distant source still undetermined but located in either Rwanda or Burundi. It flows north through Tanzania, Lake Victoria, Uganda and South Sudan.  The Blue Nile begins at Lake Tana in Ethiopia and flows into Sudan from the southeast. The two rivers meet just north of the Sudanese capital of Khartoum.The northern section of the river flows north almost entirely through the Sudanese desert to Egypt, then ends in a large delta and flows into the Mediterranean Sea. Egyptian civilization and Sudanese kingdoms have depended on the river since ancient times. Most of the population and cities of Egypt lie along those parts of the Nile valley north of Aswan, and nearly all the cultural and historical sites of Ancient Egypt are found along river banks.
Document 2: Medjerda River: The Medjerda River (), the classical Bagrada, is a river in North Africa flowing from northeast Algeria through Tunisia before emptying into the Gulf of Tunis and Lake of Tunis. With a length of , it is the longest river of Tunisia. It is also known as the Wadi Majardah or Mejerha ().
Document 3: John Williams: John Towner Williams (born February 8, 1932) is an American composer, conductor, and pianist. With a career spanning over six decades, he has composed some of the most popular, recognizable, and critically acclaimed film scores in cinematic history, including those of the Star Wars series, Jaws, Jaws 2, Close Encounters of the Third Kind, Superman, E.T. the Extra-Terrestrial, the Indiana Jones series, the first two Home Alone films, the first two Jurassic Park films, Schindler's List, and the first three Harry Potter films. Williams has been associated with director Steven Spielberg since 1974, composing music for all but three of his feature films. Other notable works by Williams include theme music for the 1984 Summer Olympic Games, NBC Sunday Night Football, ``The Mission ''theme used by NBC News and Seven News in Australia, the television series Lost in Space and Land of the Giants, and the incidental music for the first season of Gilligan's Island. Williams has also composed numerous classical concertos and other works for orchestral ensembles and solo instruments. From 1980 to 1993 he served as the Boston Pops's principal conductor, and is currently the orchestra's laureate conductor.
Document 4: Flooding of the Nile: The flooding of the Nile is the result of the yearly monsoon between May and August causing enormous precipitations on the Ethiopian Highlands whose summits reach heights of up to 4550 m (14,928 ft). Most of this rainwater is taken by the Blue Nile and by the Atbarah River into the Nile, a less important amount is flowing through the Sobat and the White Nile into the Nile. During this short period, those rivers contribute up to ninety percent of the water of the Nile and most of the sedimentation carried by it, but after the rainy season, dwindle to minor rivers.
Document 5: Atbarah River: The Atbarah River (; transliterated: Nahr 'Atbarah) in northeast Africa rises in northwest Ethiopia, approximately 50 km north of Lake Tana and 30 km west of Gondar. It flows about 805 km (500 mi) to the Nile in north-central Sudan, joining it at the city of Atbarah (). The river's tributary, the Tekezé (Setit) River, is perhaps the true upper course of the Atbarah, as the Tekezé follows the longer course prior to the confluence of the two rivers (at 14° 10' N, 36° E) in northeastern Sudan. The Atbarah is the last tributary of the Nile before it reaches the Mediterranean.
Document 6: Sahara: The desert comprises much of North Africa, excluding the fertile region on the Mediterranean Sea coast, the Atlas Mountains of the Maghreb, and the Nile Valley in Egypt and Sudan. It stretches from the Red Sea in the east and the Mediterranean in the north to the Atlantic Ocean in the west, where the landscape gradually changes from desert to coastal plains. To the south, it is bounded by the Sahel, a belt of semi-arid tropical savanna around the Niger River valley and the Sudan Region of Sub-Saharan Africa.
Document 7: Birbir River: The Birbir River of southwestern Ethiopia is a tributary of the Baro River, which it creates when it joins the Gebba at latitude and longitude . It is politically important because its course defines part of the boundary between the Mirab Welega and Illubabor Zones of the Oromia Region.
Document 8: Tekezé River: The Tekezé River rises in the central Ethiopian Highlands near Mount Qachen within Lasta, from where it flows west, north, then west again, forming the westernmost border of Ethiopia and Eritrea from the confluence of the Tomsa with the Tekezé at to the tripoint between the two countries and Sudan at . After entering northeastern Sudan at the tripoint it joins the Atbarah River, which is a tributary of the Nile. The Tekezé is perhaps the true upper course of the Atbarah, as the former follows the longer course prior to the confluence of the two rivers.
Document 9: Sobat River: The Sobat River is a river of the Greater Upper Nile region in northeastern South Sudan, Africa. It is the most southerly of the great eastern tributaries of the White Nile, before the confluence with the Blue Nile.
Document 10: James Bond Theme: Monty Norman has been credited with writing the ``James Bond Theme '', and has received royalties since 1962. Norman collected around £485,000 in royalties between the years 1976 and 1999. For Dr. No, the tune was arranged by John Barry, who would later go on to compose the soundtracks for eleven James Bond films. Courts have ruled twice that the theme was written by Monty Norman, despite claims and testimony by Barry that he had actually written the theme. Norman has consequently won two libel actions against publishers for claiming that Barry wrote the theme, most recently against The Sunday Times in 2001.
Document 11: Walaqa River: The Walaqa River, a tributary of the Blue Nile, is river in the Amhara Region of Ethiopia. Wegde is located to its north. Mida Woremo and Dera are to the south, while Kelala is to the northeast. The Walaqa River may have been the northern boundary of the historical province of Walaqa.
Document 12: John Barry (composer): John Barry Prendergast, OBE (/ ˈbæri /; 3 November 1933 -- 30 January 2011) was an English composer and conductor of film music. He composed the scores for 11 of the James Bond films between 1963 and 1987, and also arranged and performed the ``James Bond Theme ''to the first film in the series, 1962's Dr. No. He wrote the Grammy - and Academy Award - winning scores to the films Dances with Wolves and Out of Africa, as well as the theme for the British television cult series The Persuaders!, in a career spanning over 50 years. In 1999, he was appointed OBE at Buckingham Palace for services to music.
Document 13: Yangtze: The river originates from several tributaries in the eastern part of the Tibetan Plateau, two of which are commonly referred to as the ``source ''. Traditionally, the Chinese government has recognized the source as the Tuotuo tributary at the base of a glacier lying on the west of Geladandong Mountain in the Tanggula Mountains. This source is found at 33 ° 25 ′ 44'' N 91 ° 10 ′ 57 ''E ﻿ / ﻿ 33.42889 ° N 91.18250 ° E ﻿ / 33.42889; 91.18250 and while not the furthest source of the Yangtze, it is the highest source at 5,342 m (17,526 ft) above sea level. The true source of the Yangtze, hydrologically the longest river distance from the sea, is at Jari Hill at the head of the Dam Qu tributary, approximately 325 km (202 mi) southeast of Geladandong. This source was only discovered in the late 20th century and lies in wetlands at 32 ° 36 ′ 14'' N 94 ° 30 ′ 44 ''E ﻿ / ﻿ 32.60389 ° N 94.51222 ° E ﻿ / 32.60389; 94.51222 and 5,170 m (16,960 ft) above sea level just southeast of Chadan Township in Zadoi County, Yushu Prefecture, Qinghai. As the historical spiritual source of the Yangtze, the Geladandong source is still commonly referred to as the source of the Yangtze since the discovery of the Jari Hill source.
Document 14: John Williams: John Towner Williams (born February 8, 1932) is an American composer, conductor, and pianist. With a career spanning over six decades, he has composed some of the most popular, recognizable, and critically acclaimed film scores in cinematic history, including those of the Star Wars series, Jaws, Close Encounters of the Third Kind, Superman, E.T. the Extra-Terrestrial, the Indiana Jones series, the first two Home Alone films, the first two Jurassic Park films, Schindler's List, and the first three Harry Potter films. Williams has been associated with director Steven Spielberg since 1974, composing music for all but three of his feature films. Other works by Williams include theme music for the 1984 Summer Olympic Games, NBC Sunday Night Football, ``The Mission ''theme used by NBC News and Seven News in Australia, the television series Lost in Space and Land of the Giants, and the incidental music for the first season of Gilligan's Island. Williams has also composed numerous classical concertos and other works for orchestral ensembles and solo instruments. From 1980 to 1993 he served as the Boston Pops's principal conductor, and is currently the orchestra's laureate conductor.
Document 15: John Williams: John Towner Williams (born February 8, 1932) is an American composer, conductor, and pianist. With a career spanning over six decades, he has composed some of the most popular, recognizable, and critically acclaimed film scores in cinematic history, including those of the Star Wars series, Jaws, Close Encounters of the Third Kind, Superman, E.T. the Extra-Terrestrial, the Indiana Jones series, the first two Home Alone films, Hook, the first two Jurassic Park films, Schindler's List, and the first three Harry Potter films. Williams has been associated with director Steven Spielberg since 1974, composing music for all but three of his feature films. Other works by Williams include theme music for the 1984 Summer Olympic Games, NBC Sunday Night Football, ``The Mission ''theme used by NBC News and Seven News in Australia, the television series Lost in Space and Land of the Giants, and the incidental music for the first season of Gilligan's Island. Williams has also composed numerous classical concertos and other works for orchestral ensembles and solo instruments. From 1980 to 1993 he served as the Boston Pops's principal conductor, and is currently the orchestra's laureate conductor.
ground_truth: John Barry Prendergast
sub_queries: What river does Tekezé River turn into? Answer: Atbarah River
Atbarah River >> continent Answer: Africa
who wrote the theme song for out of Africa Answer: John Barry Prendergast