input question: Extract the answer to the question from the following context. Question: What is one characteristic of the electrodes of the supercapacitor? Context: Last but not least the electric double-layer capacitor (now Supercapacitors) were invented. In 1957 H. Becker developed a "Low voltage electrolytic capacitor with porous carbon electrodes". He believed that the energy was stored as a charge in the carbon pores used in his capacitor as in the pores of the etched foils of electrolytic capacitors. Because the double layer mechanism was not known by him at the time, he wrote in the patent: "It is not known exactly what is taking place in the component if it is used for energy storage, but it leads to an extremely high capacity.".???
output answer: porous

Extract the answer to the question from the following context. Question: What relationship does the Ohio river and Tennessee river have with the Mississippi river? Context: The five Great Lakes are located in the north-central portion of the country, four of them forming part of the border with Canada, only Lake Michigan situated entirely within United States. The southeast United States contain subtropical forests and, near the gulf coast, mangrove wetlands, especially in Florida. West of the Appalachians lies the Mississippi River basin and two large eastern tributaries, the Ohio River and the Tennessee River. The Ohio and Tennessee Valleys and the Midwest consist largely of rolling hills and productive farmland, stretching south to the Gulf Coast.
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Answer: West of the Appalachians

Q: Extract the answer to the question from the following context. Question: What island was ten leagues away from Pajares? Context: The Spanish ship San Pedro and two other vessels in an expedition commanded by Miguel López de Legazpi discovered an island on January 9, 1530, possibly Mejit, at 10°N, which they named "Los Barbudos". The Spaniards went ashore and traded with the local inhabitants. On January 10, the Spaniards sighted another island that they named "Placeres", perhaps Ailuk; ten leagues away, they sighted another island that they called "Pajares" (perhaps Jemo). On January 12, they sighted another island at 10°N that they called "Corrales" (possibly Wotho). On January 15, the Spaniards sighted another low island, perhaps Ujelang, at 10°N, where they described the people on "Barbudos". After that, ships including the San Jeronimo, Los Reyes and Todos los Santos also visited the islands in different years.
A: Placeres

Question: Extract the answer to the question from the following context. Question: Why is United Air relevant to the train lines for Amtrak? Context: Union Station is further served by four Amtrak lines: the Northeast Regional and the high-speed Acela Express provide service to New York, Washington, D.C. and Boston, and rank as the first and second busiest routes in the country; the New Haven–Springfield Line provides service to Hartford and Springfield, Massachusetts; and the Vermonter provides service to both Washington, D.C., and Vermont, 15 miles (24 km) from the Canadian border. Amtrak also codeshares with United Airlines for travel to any airport serviced by United Airlines, via Newark Airport (EWR) originating from or terminating at Union Station, (IATA: ZVE).
Answer: Amtrak also codeshares with United Airlines

[Q]: Extract the answer to the question from the following context. Question: What is a defense mechanism of a mother bird? Context: Birds sometimes use plumage to assess and assert social dominance, to display breeding condition in sexually selected species, or to make threatening displays, as in the sunbittern's mimicry of a large predator to ward off hawks and protect young chicks. Variation in plumage also allows for the identification of birds, particularly between species. Visual communication among birds may also involve ritualised displays, which have developed from non-signalling actions such as preening, the adjustments of feather position, pecking, or other behaviour. These displays may signal aggression or submission or may contribute to the formation of pair-bonds. The most elaborate displays occur during courtship, where "dances" are often formed from complex combinations of many possible component movements; males' breeding success may depend on the quality of such displays.
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[A]: sunbittern's mimicry of a large predator

Problem: Given the question: Extract the answer to the question from the following context. Question: What church role was only for men? Context: Women in the Middle Ages were officially required to be subordinate to some male, whether their father, husband, or other kinsman. Widows, who were often allowed much control over their own lives, were still restricted legally. Women's work generally consisted of household or other domestically inclined tasks. Peasant women were usually responsible for taking care of the household, child-care, as well as gardening and animal husbandry near the house. They could supplement the household income by spinning or brewing at home. At harvest-time, they were also expected to help with field-work. Townswomen, like peasant women, were responsible for the household, and could also engage in trade. What trades were open to women varied by country and period. Noblewomen were responsible for running a household, and could occasionally be expected to handle estates in the absence of male relatives, but they were usually restricted from participation in military or government affairs. The only role open to women in the Church was that of nuns, as they were unable to become priests.
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The answer is:
priests