Problem: Infection:

Diagnosis of infectious disease sometimes involves identifying an infectious agent either directly or indirectly. In practice most minor infectious diseases such as warts, cutaneous abscesses, respiratory system infections and diarrheal diseases are diagnosed by their clinical presentation and treated without knowledge of the specific causative agent. Conclusions about the cause of the disease are based upon the likelihood that a patient came in contact with a particular agent, the presence of a microbe in a community, and other epidemiological considerations. Given sufficient effort, all known infectious agents can be specifically identified. The benefits of identification, however, are often greatly outweighed by the cost, as often there is no specific treatment, the cause is obvious, or the outcome of an infection is benign.

What does diagnosis of an infectious sometimes involve identifying? 
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A: an infectious agent either directly or indirectly


Problem: With $18.8 million spent in 2013, Comcast has the seventh largest lobbying budget of any individual company or organization in the United States. Comcast employs multiple former US Congressmen as lobbyists. The National Cable & Telecommunications Association, which has multiple Comcast executives on its board, also represents Comcast and other cable companies as the fifth largest lobbying organization in the United States, spending $19.8 million in 2013. Comcast was among the top backers of Barack Obama's presidential runs, with Comcast vice president David Cohen raising over $2.2 million from 2007 to 2012. Cohen has been described by many sources as influential in the US government, though he is no longer a registered lobbyist, as the time he spends lobbying falls short of the 20% which requires official registration. Comcast's PAC, the Comcast Corporation and NBCUniversal Political Action Committee, is the among the largest PACs in the US, raising about $3.7 million from 2011-2012 for the campaigns of various candidates for office in the United States Federal Government. Comcast is also a major backer of the National Cable and Telecommunications Association Political Action Committee, which raised $2.6 million from 2011-2012. Comcast spent the most money of any organization in support of the Stop Online Piracy and PROTECT IP bills, spending roughly $5 million to lobby for their passage.
What is the seventh largest lobbying company in the world?
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Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Besides the city wall, other famous Ming-era structures in the city included the famous Ming Xiaoling Mausoleum and Porcelain Tower, although the latter was destroyed by the Taipings in the 19th century either in order to prevent a hostile faction from using it to observe and shell the city or from superstitious fear of its geomantic properties.
What is the name of the famous mausoleum in Nanjing?
A: Ming Xiaoling Mausoleum


Context and question: As with any other country during the Early Modern Period, such as Italy and Spain in Europe, the Ottoman social life was interconnected with the medrese. Medreses were built in as part of a Mosque complex where many programmes, such as aid to the poor through soup kitchens, were held under the infrastructure of a mosque, which reveals the interconnectedness of religion and social life during this period. "The mosques to which medreses were attached, dominated the social life in Ottoman cities." Social life was not dominated by religion only in the Muslim world of the Ottoman Empire; it was also quite similar to the social life of Europe during this period. As Goffman says: "Just as mosques dominated social life for the Ottomans, churches and synagogues dominated life for the Christians and Jews as well." Hence, social life and the medrese were closely linked, since medreses taught many curricula, such as religion, which highly governed social life in terms of establishing orthodoxy. "They tried moving their developing state toward Islamic orthodoxy." Overall, the fact that mosques contained medreses comes to show the relevance of education to religion in the sense that education took place within the framework of religion and religion established social life by trying to create a common religious orthodoxy. Hence, medreses were simply part of the social life of society as students came to learn the fundamentals of their societal values and beliefs.
What had a hold over social life in only the Ottoman Empire, not other cultures?
Answer: unanswerable


Question: Wilhelm Erb's (1874) "intensive" theory, that a pain signal can be generated by intense enough stimulation of any sensory receptor, has been soundly disproved. Some sensory fibers do not differentiate between noxious and non-noxious stimuli, while others, nociceptors, respond only to noxious, high intensity stimuli. At the peripheral end of the nociceptor, noxious stimuli generate currents that, above a given threshold, begin to send signals along the nerve fiber to the spinal cord. The "specificity" (whether it responds to thermal, chemical or mechanical features of its environment) of a nociceptor is determined by which ion channels it expresses at its peripheral end. Dozens of different types of nociceptor ion channels have so far been identified, and their exact functions are still being determined.
Is there an answer to this question: What type of signal can be generated by intense enough stimulation of any sensory receptor?

Answer: pain


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Cold or oxygen-rich atmospheres can sustain life at pressures much lower than atmospheric, as long as the density of oxygen is similar to that of standard sea-level atmosphere. The colder air temperatures found at altitudes of up to 3 km generally compensate for the lower pressures there. Above this altitude, oxygen enrichment is necessary to prevent altitude sickness in humans that did not undergo prior acclimatization, and spacesuits are necessary to prevent ebullism above 19 km. Most spacesuits use only 20 kPa (150 Torr) of pure oxygen. This pressure is high enough to prevent ebullism, but decompression sickness and gas embolisms can still occur if decompression rates are not managed.
What is needed at altitudes of up to 3km to prevent altitiude sickness?
A:
unanswerable