Problem: Poultry:

The domestication of poultry took place several thousand years ago. This may have originally been as a result of people hatching and rearing young birds from eggs collected from the wild, but later involved keeping the birds permanently in captivity. Domesticated chickens may have been used for cockfighting at first and quail kept for their songs, but soon it was realised how useful it was having a captive-bred source of food. Selective breeding for fast growth, egg-laying ability, conformation, plumage and docility took place over the centuries, and modern breeds often look very different from their wild ancestors. Although some birds are still kept in small flocks in extensive systems, most birds available in the market today are reared in intensive commercial enterprises. Poultry is the second most widely eaten type of meat globally and, along with eggs, provides nutritionally beneficial food containing high-quality protein accompanied by a low proportion of fat. All poultry meat should be properly handled and sufficiently cooked in order to reduce the risk of food poisoning.

How long have humans used domsticated poultry ?
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A: domestication of poultry took place several thousand years ago


Problem: Utrecht hosts several large institutions of higher education. The most prominent of these is Utrecht University (est. 1636), the largest university of the Netherlands with 30,449 students (as of 2012). The university is partially based in the inner city as well as in the Uithof campus area, to the east of the city. According to Shanghai Jiaotong University's university ranking in 2014 it is the 57th best university in the world. Utrecht also houses the much smaller University of Humanistic Studies, which houses about 400 students.
What university was established in the 16th century?
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Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
To determine what information in an audio signal is perceptually irrelevant, most lossy compression algorithms use transforms such as the modified discrete cosine transform (MDCT) to convert time domain sampled waveforms into a transform domain. Once transformed, typically into the frequency domain, component frequencies can be allocated bits according to how audible they are. Audibility of spectral components calculated using the absolute threshold of hearing and the principles of simultaneous masking—the phenomenon wherein a signal is masked by another signal separated by frequency—and, in some cases, temporal masking—where a signal is masked by another signal separated by time. Equal-loudness contours may also be used to weight the perceptual importance of components. Models of the human ear-brain combination incorporating such effects are often called psychoacoustic models.
What may be used to weight the importance of components?
A: Equal-loudness contours


Context and question: In 1963, Ralph J. Roberts in conjunction with his two business partners, Daniel Aaron and Julian A. Brodsky, purchased American Cable Systems as a corporate spin-off from its parent, Jerrold Electronics, for US $500,000. At the time, American Cable was a small cable operator in Tupelo, Mississippi, with five channels and 12,000 customers. Storecast Corporation of America, a product placement supermarket specialist marketing firm, was purchased by American Cable in 1965. With Storecast being a Muzak client, American Cable purchased its first Muzak franchise of many in Orlando, Florida.
How many customers did ACS have when Roberts and his partners purchased it?
Answer: 12,000


Question: In March 2008, it was announced that Avicenna's name would be used for new Directories of education institutions for health care professionals, worldwide. The Avicenna Directories will list universities and schools where doctors, public health practitioners, pharmacists and others, are educated. The project team stated "Why Avicenna? Avicenna ... was ... noted for his synthesis of knowledge from both east and west. He has had a lasting influence on the development of medicine and health sciences. The use of Avicenna's name symbolises the worldwide partnership that is needed for the promotion of health services of high quality."
Is there an answer to this question: What does the Avicenna Directories contain?

Answer: where doctors, public health practitioners, pharmacists and others, are educated


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Faced with this loss of business, Valencia suffered a severe economic crisis. This manifested early in 1519–1523 when the artisan guilds known as the Germanies revolted against the government of the Habsburg king Charles I in Valencia, now part of the Crown of Aragon, with most of the fighting done in 1521. The revolt was an anti-monarchist, anti-feudal autonomist movement inspired by the Italian republics, and a social revolt against the nobility who had fled the city before an epidemic of plague in 1519. It also bore a strong anti-Islamic aspect, as rebels rioted against Aragon's population of mudéjars and imposed forced conversions to Christianity.
What were the artisan guilds called?
A:
the Germanies