Q: Extract the answer to the question from the following context. Question: What was patented in 1837? Context: The first commutator DC electric motor capable of turning machinery was invented by the British scientist William Sturgeon in 1832. Following Sturgeon's work, a commutator-type direct-current electric motor made with the intention of commercial use was built by the American inventor Thomas Davenport, which he patented in 1837. The motors ran at up to 600 revolutions per minute, and powered machine tools and a printing press. Due to the high cost of primary battery power, the motors were commercially unsuccessful and Davenport went bankrupt. Several inventors followed Sturgeon in the development of DC motors but all encountered the same battery power cost issues. No electricity distribution had been developed at the time. Like Sturgeon's motor, there was no practical commercial market for these motors.
A: a commutator-type direct-current electric motor made with the intention of commercial use

Question: Extract the answer to the question from the following context. Question: Which region did the Soviet Union invade first, Poland or Bukovina? Context: The stated clauses of the Nazi-Soviet non-aggression pact were a guarantee of non-belligerence by each party towards the other, and a written commitment that neither party would ally itself to, or aid, an enemy of the other party. In addition to stipulations of non-aggression, the treaty included a secret protocol that divided territories of Romania, Poland, Lithuania, Latvia, Estonia, and Finland into German and Soviet "spheres of influence", anticipating potential "territorial and political rearrangements" of these countries. Thereafter, Germany invaded Poland on 1 September 1939. After the SovietJapanese ceasefire agreement took effect on 16 September, Stalin ordered his own invasion of Poland on 17 September. Part of southeastern (Karelia) and Salla region in Finland were annexed by the Soviet Union after the Winter War. This was followed by Soviet annexations of Estonia, Latvia, Lithuania, and parts of Romania (Bessarabia, Northern Bukovina, and the Hertza region). Concern about ethnic Ukrainians and Belarusians had been proffered as justification for the Soviet invasion of Poland. Stalin's invasion of Bukovina in 1940 violated the pact, as it went beyond the Soviet sphere of influence agreed with the Axis.
Answer: Poland

[Q]: Extract the answer to the question from the following context. Question: Who did Cohen and Bray have ideas in common with? Context: Anthropologists have contributed to the debate by shifting the focus of research: One of the first challenges for the researcher wishing to carry out empirical research in this area is to identify an appropriate analytical tool. The concept of boundaries is useful here for demonstrating how identity works. In the same way as Barth, in his approach to ethnicity, advocated the critical focus for investigation as being "the ethnic boundary that defines the group rather than the cultural stuff that it encloses" (1969:15), social anthropologists such as Cohen and Bray have shifted the focus of analytical study from identity to the boundaries that are used for purposes of identification. If identity is a kind of virtual site in which the dynamic processes and markers used for identification are made apparent, boundaries provide the framework on which this virtual site is built. They concentrated on how the idea of community belonging is differently constructed by individual members and how individuals within the group conceive ethnic boundaries.
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[A]: Barth

input: Please answer the following: Extract the answer to the question from the following context. Question: What was American Idol ranked number one overall in? Context: Seasonal rankings (based on average total viewers per episode) of American Idol. It holds the distinction of having the longest winning streak in the Nielsen annual television ratings; it became the highest-rated of all television programs in the United States overall for an unprecedented seven consecutive years, or eight consecutive (and total) years when either its performance or result show was ranked number one overall.
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output: performance or result show

Please answer this: Extract the answer to the question from the following context. Question: What is not known about endothermy? Context: When endothermy first appeared in the evolution of mammals is uncertain. Modern monotremes have lower body temperatures and more variable metabolic rates than marsupials and placentals, but there is evidence that some of their ancestors, perhaps including ancestors of the therians, may have had body temperatures like those of modern therians. Some of the evidence found so far suggests that Triassic cynodonts had fairly high metabolic rates, but it is not conclusive. For small animals, an insulative covering like fur is necessary for the maintenance of a high and stable body temperature.
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Answer: first appeared

Question: Extract the answer to the question from the following context. Question: As a group, who does not believe that a material God exists? Context: Some findings in the fields of cosmology, evolutionary biology and neuroscience are interpreted by atheists (including Lawrence M. Krauss and Sam Harris) as evidence that God is an imaginary entity only, with no basis in reality. A single, omniscient God who is imagined to have created the universe and is particularly attentive to the lives of humans has been imagined, embellished and promulgated in a trans-generational manner. Richard Dawkins interprets various findings not only as a lack of evidence for the material existence of such a God but extensive evidence to the contrary.
Answer:
atheists