Q: Extract the answer to the question from the following context. Question: Why was tyrothricin uncommon? Context: In 1939, coinciding with the start of World War II, Rene Dubos reported the discovery of the first naturally derived antibiotic, tyrothricin, a compound of 20% gramicidin and 80% tyrocidine, from B. brevis. It was one of the first commercially manufactured antibiotics universally and was very effective in treating wounds and ulcers during World War II. Gramicidin, however, could not be used systemically because of toxicity. Tyrocidine also proved too toxic for systemic usage. Research results obtained during that period were not shared between the Axis and the Allied powers during the war.
A: toxicity
Question: Extract the answer to the question from the following context. Question: Which company sold less copies per day in 1981, The Times or The Daily Telegraph? Context: At the time of Harold Evans' appointment as editor in 1981, The Times had an average daily sale of 282,000 copies in comparison to the 1.4 million daily sales of its traditional rival The Daily Telegraph. By November 2005 The Times sold an average of 691,283 copies per day, the second-highest of any British "quality" newspaper (after The Daily Telegraph, which had a circulation of 903,405 copies in the period), and the highest in terms of full-rate sales. By March 2014, average daily circulation of The Times had fallen to 394,448 copies, compared to The Daily Telegraph's 523,048, with the two retaining respectively the second-highest and highest circulations among British "quality" newspapers. In contrast The Sun, the highest-selling "tabloid" daily newspaper in the United Kingdom, sold an average of 2,069,809 copies in March 2014, and the Daily Mail, the highest-selling "middle market" British daily newspaper, sold an average of 1,708,006 copies in the period.
Answer: The Times
[Q]: Extract the answer to the question from the following context. Question: Who invented the ballade? Context: Chopin took the new salon genre of the nocturne, invented by the Irish composer John Field, to a deeper level of sophistication. He was the first to write ballades and scherzi as individual concert pieces. He essentially established a new genre with his own set of free-standing preludes (Op. 28, published 1839). He exploited the poetic potential of the concept of the concert etude, already being developed in the 1820s and 1830s by Liszt, Clementi and Moscheles, in his two sets of studies (Op. 10 published in 1833, Op. 25 in 1837).
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[A]: Chopin
input: Please answer the following: Extract the answer to the question from the following context. Question: What intellectual movement taught natural history? Context: A genre that greatly rose in importance was that of scientific literature. Natural history in particular became increasingly popular among the upper classes. Works of natural history include Rene-Antoine Ferchault de Reaumur's Histoire naturelle des insectes and Jacques Gautier d'Agoty's La Myologie complete, ou description de tous les muscles du corps humain (1746). Outside ancien regime France, natural history was an important part of medicine and industry, encompassing the fields of botany, zoology, meteorology, hydrology and mineralogy. Students in Enlightenment universities and academies were taught these subjects to prepare them for careers as diverse as medicine and theology. As shown by M D Eddy, natural history in this context was a very middle class pursuit and operated as a fertile trading zone for the interdisciplinary exchange of diverse scientific ideas.
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output: Enlightenment
Please answer this: Extract the answer to the question from the following context. Question: Which of the following is not an isotope of uranium: 238, 240 or 244? Context: Natural uranium consists of three major isotopes: uranium-238 (99.28% natural abundance), uranium-235 (0.71%), and uranium-234 (0.0054%). All three are radioactive, emitting alpha particles, with the exception that all three of these isotopes have small probabilities of undergoing spontaneous fission, rather than alpha emission. There are also five other trace isotopes: uranium-239, which is formed when 238U undergoes spontaneous fission, releasing neutrons that are captured by another 238U atom; uranium-237, which is formed when 238U captures a neutron but emits two more, which then decays to neptunium-237; uranium-233, which is formed in the decay chain of that neptunium-237; and finally, uranium-236 and -240, which appear in the decay chain of primordial plutonium-244. It is also expected that thorium-232 should be able to undergo double beta decay, which would produce uranium-232, but this has not yet been observed experimentally.
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Answer: 244
Question: Extract the answer to the question from the following context. Question: Why might the rebrand be difficult? Context: On 27 August 2007, Royal Dutch Shell and Reitan Group, the owner of the 7-Eleven brand in Scandinavia, announced an agreement to re-brand some 269 service stations across Norway, Sweden, Finland and Denmark, subject to obtaining regulatory approvals under the different competition laws in each country. On April 2010 Shell announced that the corporation is in process of trying to find a potential buyer for all of its operations in Finland and is doing similar market research concerning Swedish operations. On October 2010 Shell's gas stations and the heavy vehicle fuel supply networks in Finland and Sweden, along with a refinery located in Gothenburg, Sweden were sold to St1, a Finnish energy company, more precisely to its major shareholding parent company Keele Oy. Shell branded gas stations will be rebranded within maximum of five years from the acquisition and the number of gas stations is likely to be reduced. Until then the stations will operate under Shell brand licence.
Answer:
subject to obtaining regulatory approvals under the different competition laws in each country