Problem: Adult contemporary music:

Hot adult contemporary radio stations play a variety of classic hits and contemporary mainstream music aimed at an adult audience. Some Hot AC stations concentrate slightly more on pop music and alternative rock to target the Generation Z audience, though they include the more youth-oriented teen pop, urban and rhythmic dance tracks.

What demographic do hot AC stations featuring more pop and alternative rock focus on?
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A: Generation Z


Problem: At about the same time, Charles Coffin, leading the Thomson-Houston Electric Company, acquired a number of competitors and gained access to their key patents. General Electric was formed through the 1892 merger of Edison General Electric Company of Schenectady, New York, and Thomson-Houston Electric Company of Lynn, Massachusetts, with the support of Drexel, Morgan & Co. Both plants continue to operate under the GE banner to this day. The company was incorporated in New York, with the Schenectady plant used as headquarters for many years thereafter. Around the same time, General Electric's Canadian counterpart, Canadian General Electric, was formed.
Where was Canadian General Electric based?
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Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Ion gauges are used in ultrahigh vacuum. They come in two types: hot cathode and cold cathode. In the hot cathode version an electrically heated filament produces an electron beam. The electrons travel through the gauge and ionize gas molecules around them. The resulting ions are collected at a negative electrode. The current depends on the number of ions, which depends on the pressure in the gauge. Hot cathode gauges are accurate from 10−3 torr to 10−10 torr. The principle behind cold cathode version is the same, except that electrons are produced in a discharge created by a high voltage electrical discharge. Cold cathode gauges are accurate from 10−2 torr to 10−9 torr. Ionization gauge calibration is very sensitive to construction geometry, chemical composition of gases being measured, corrosion and surface deposits. Their calibration can be invalidated by activation at atmospheric pressure or low vacuum. The composition of gases at high vacuums will usually be unpredictable, so a mass spectrometer must be used in conjunction with the ionization gauge for accurate measurement.
What affects the number of ions in a gauge?
A: the pressure in the gauge


Context and question: Versions of revived Palladian architecture dominated English country house architecture. Houses were increasingly placed in grand landscaped settings, and large houses were generally made wide and relatively shallow, largely to look more impressive from a distance. The height was usually highest in the centre, and the Baroque emphasis on corner pavilions often found on the continent generally avoided. In grand houses, an entrance hall led to steps up to a piano nobile or mezzanine floor where the main reception rooms were. Typically the basement area or "rustic", with kitchens, offices and service areas, as well as male guests with muddy boots, came some way above ground, and was lit by windows that were high on the inside, but just above ground level outside. A single block was typical, with a perhaps a small court for carriages at the front marked off by railings and a gate, but rarely a stone gatehouse, or side wings around the court.
What led to steps going down to a mezzanine floor in grand houses?
Answer: unanswerable


Question: In March 2013, Microsoft also amended its certification requirements to allow tablets to use the 1024×768 resolution as a minimum; this change is expected to allow the production of certified Windows 8 tablets in smaller form factors—a market which is currently dominated by Android-based tablets. Despite the reaction of industry experts, Microsoft reported that they had sold 100 million licenses in the first six months. This matched sales of Windows 7 over a similar period. This statistic includes shipments to channel warehouses which now need to be sold in order to make way for new shipments.
Is there an answer to this question: What changes did Microsoft make to its recertification requirements in March 2013?

Answer: unanswerable


Question: The Victorian era in particular became notorious for the conditions under which children were employed. Children as young as four were employed in production factories and mines working long hours in dangerous, often fatal, working conditions. In coal mines, children would crawl through tunnels too narrow and low for adults. Children also worked as errand boys, crossing sweepers, shoe blacks, or selling matches, flowers and other cheap goods. Some children undertook work as apprentices to respectable trades, such as building or as domestic servants (there were over 120,000 domestic servants in London in the mid-18th century). Working hours were long: builders worked 64 hours a week in summer and 52 in winter, while domestic servants worked 80 hour weeks.
Is there an answer to this question: What was the youngest age of a child working in a factory?

Answer:
four