Student A:Passage: The Good, the Bad and the Ugly: Original Motion Picture Soundtrack was released in 1966 alongside the Western film, The Good, the Bad and the Ugly, directed by Sergio Leone. The score is composed by frequent Leone collaborator Ennio Morricone, whose distinctive original compositions, containing gunfire, whistling, and yodeling permeate the film. The main theme, resembling the howling of a coyote, is a two-note melody that is a frequent motif, and is used for the three main characters, with a different instrument used for each one: flute for Blondie (Man With No Name), Arghilofono (Ocarina) for Angel Eyes, and human voices for Tuco.

Question: Based on this passage, who wrote music for the good the bad and the ugly?
Student B:OK... To answer the above question, the relevant sentence is: The score is composed by frequent Leone collaborator Ennio Morricone, whose distinctive original compositions, containing gunfire, whistling, and yodeling permeate the film.
Ennio Morricone.

Student A:South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded on the south by 2,798 kilometres (1,739 mi) of coastline of Southern Africa stretching along the South Atlantic and Indian Oceans; on the north by the neighbouring countries of Namibia, Botswana, and Zimbabwe; and on the east and northeast by Mozambique and Swaziland; and surrounds the kingdom of Lesotho. South Africa is the largest country in Southern Africa and the 25th-largest country in the world by land area and, with close to 56 million people, is the world's 24th-most populous nation. It is the southernmost country on the mainland of the Old World or the Eastern Hemisphere. About 80 percent of South Africans are of Sub-Saharan African ancestry, divided among a variety of ethnic groups speaking different African languages, nine of which have official status. The remaining population consists of Africa's largest communities of European (white), Asian (Indian), and multiracial (coloured) ancestry.

Answer this question: is south africa a continent or a country?
Student B:OK... The relevant information is: South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa.
country.

Student A:The nephron (from Greek νεφρός -- nephros, meaning "kidney") is the microscopic structural and functional unit of the kidney. It is composed of a renal corpuscle and a renal tubule. The renal corpuscle consists of a tuft of capillaries called a glomerulus and an encompassing Bowman's capsule. The renal tubule extends from the capsule. The capsule and tubule are connected and are composed of epithelial cells with a lumen. A healthy adult has 0.8 to 1.5 million nephrons in each kidney. Blood is filtered as it passes through three layers: the endothelial cells of the capillary wall, its basement membrane, and between the foot processes of the podocytes of the lining of the capsule. The tubule has adjacent peritubular capillaries that run between the descending and ascending portions of the tubule. As the fluid from the capsule flows down into the tubule, it is processed by the epithelial cells lining the tubule: water is reabsorbed and substances are exchanged (some are added, others are removed); first with the interstitial fluid outside the tubules, and then into the plasma in the adjacent peritubular capillaries through the endothelial cells lining that capillary. This process regulates the volume of body fluid as well as levels of many body substances. At the end of the tubule, the remaining fluid -- urine -- exits: it is composed of water, metabolic waste, and toxins.

Answer this question: what is the microscopic unit of the kidney?
Student B:OK... The important part for answering this question is: The nephron (from Greek νεφρός -- nephros, meaning "kidney") is the microscopic structural and functional unit of the kidney.
The nephron ( from Greek νεφρός -- nephros , meaning `` kidney '' ).

Student A:Although the rankings of national economies have changed considerably over time, the United States has maintained its top position since the Gilded Age, a time period in which its economy saw rapid expansion, surpassing the British Empire and Qing dynasty in aggregate output. Since China's transition to a market-based economy through privatisation and deregulation, the country has seen its ranking increase from ninth in 1978 to second to only the United States in 2016 as economic growth accelerated and its share of global nominal GDP surged from 2 % in 1980 to 15 % in 2016. India has also experienced a similar economic boom since the implementation of economic liberalisation in the early 1990s. When supranational entities are included, the European Union is the second largest economy in the world. It was the largest from 2004, when ten countries joined the union, to 2014, after which it was surpassed by the United States.

Who had the worlds largest economy in 2014?
Student B:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
OK... The relevant sentence in the passage is: Although the rankings of national economies have changed considerably over time, the United States has maintained its top position since the Gilded Age, a time period in which its economy saw rapid expansion, surpassing the British Empire and Qing dynasty in aggregate output.
the United States.