Problem: Nanjing:

Jiangsu Province Kun Opera is one of the best theatres for Kunqu, China's oldest stage art. It is considered a conservative and traditional troupe. Nanjing also has professional opera troupes for the Yang, Yue (shaoxing), Xi and Jing (Chinese opera varieties) as well as Suzhou pingtan, spoken theatre and puppet theatre.

What other types of theater performance are seen in Nanjing?
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A: Suzhou pingtan, spoken theatre and puppet theatre

Problem: From its origins in the fur trade, the Hudson's Bay Company is the oldest corporation in North America and was the largest department store operator in Canada until the mid-1980s, with locations across the country. It also previously owned Zellers, another major Canadian department store which ceased to exist in March 2013 after selling its lease holdings to Target Canada. Other department stores in Canada are: Canadian Tire, Sears Canada, Ogilvy, Les Ailes de la Mode, Giant Tiger, Co-op, Costco and Holt Renfrew. Grocery giant Superstores carry many non-grocery items akin to a department store. Woolco had 160 stores in Canada when operations ceased (Walmart bought out Woolco in 1994). Today low-price Walmart is by far the most dominant department store retailer in Canada with outlets throughout the country. Historically, department stores were a significant component in Canadian economic life, and chain stores such as Eaton's, Charles Ogilvy Limited, Freiman's, Spencer's, Simpsons, Morgan's, and Woodward's were staples in their respective communities. Department stores in Canada are similar in design and style to department stores in the United States.
What business was the Hudson's Bay Company originally not involved in?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Some early male settlers married Indigenous American women and had informal unions with them. Early contact between Indigenous Americans and Europeans was often charged with tension, but also had moments of friendship, cooperation, and intimacy. Marriages took place in both English and Latin colonies between European men and Native women. For instance, on April 5, 1614, Pocahontas, a Powhatan woman in present-day Virginia, married the Englishman John Rolfe of Jamestown. Their son Thomas Rolfe was an ancestor to many descendants in First Families of Virginia. As a result, English laws did not exclude people with some Indigenous American ancestry from being considered English or white.
When was John Rolfe divorced from Pocahontas?
A: unanswerable

Context and question: The propagation of universities was not necessarily a steady progression, as the 17th century was rife with events that adversely affected university expansion. Many wars, and especially the Thirty Years' War, disrupted the university landscape throughout Europe at different times. War, plague, famine, regicide, and changes in religious power and structure often adversely affected the societies that provided support for universities. Internal strife within the universities themselves, such as student brawling and absentee professors, acted to destabilize these institutions as well. Universities were also reluctant to give up older curricula, and the continued reliance on the works of Aristotle defied contemporary advancements in science and the arts. This era was also affected by the rise of the nation-state. As universities increasingly came under state control, or formed under the auspices of the state, the faculty governance model (begun by the University of Paris) became more and more prominent. Although the older student-controlled universities still existed, they slowly started to move toward this structural organization. Control of universities still tended to be independent, although university leadership was increasingly appointed by the state.
What encouraged the establishment of new niversities in the 17th century?
Answer: unanswerable

Question: Some organisms have multiple copies of chromosomes: diploid, triploid, tetraploid and so on. In classical genetics, in a sexually reproducing organism (typically eukarya) the gamete has half the number of chromosomes of the somatic cell and the genome is a full set of chromosomes in a diploid cell. The halving of the genetic material in gametes is accomplished by the segregation of homologous chromosomes during meiosis. In haploid organisms, including cells of bacteria, archaea, and in organelles including mitochondria and chloroplasts, or viruses, that similarly contain genes, the single or set of circular or linear chains of DNA (or RNA for some viruses), likewise constitute the genome. The term genome can be applied specifically to mean what is stored on a complete set of nuclear DNA (i.e., the "nuclear genome") but can also be applied to what is stored within organelles that contain their own DNA, as with the "mitochondrial genome" or the "chloroplast genome". Additionally, the genome can comprise non-chromosomal genetic elements such as viruses, plasmids, and transposable elements.
Is there an answer to this question: How many chromosomes do the organelles have compared to the chloroplasts?

Answer: unanswerable

QUES: In comparison to the principal alternative, the diesel engine, electric railways offer substantially better energy efficiency, lower emissions and lower operating costs. Electric locomotives are usually quieter, more powerful, and more responsive and reliable than diesels. They have no local emissions, an important advantage in tunnels and urban areas. Some electric traction systems provide regenerative braking that turns the train's kinetic energy back into electricity and returns it to the supply system to be used by other trains or the general utility grid. While diesel locomotives burn petroleum, electricity is generated from diverse sources including many that do not produce carbon dioxide such as nuclear power and renewable forms including hydroelectric, geothermal, wind and solar.

What is the principal alternative to electric railways?
What is the answer?
ANS:
diesel engine