Problem: Tuberculosis:

Using histological stains on expectorated samples from phlegm (also called "sputum"), scientists can identify MTB under a microscope. Since MTB retains certain stains even after being treated with acidic solution, it is classified as an acid-fast bacillus. The most common acid-fast staining techniques are the Ziehl–Neelsen stain and the Kinyoun stain, which dye acid-fast bacilli a bright red that stands out against a blue background. Auramine-rhodamine staining and fluorescence microscopy are also used.

What's another word for "sputum"?
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A: phlegm


Problem: The Assembly consisted of nine seats, with electors casting nine equal votes, of which no more than two could be given to any individual candidate. It is a method of voting called a "weighted first past the post system". Four of the members of the Assembly formed the Executive Council, which devised policy and acted as an advisory body to the Administrator. The last Chief Minister of Norfolk Island was Lisle Snell. Other ministers included: Minister for Tourism, Industry and Development; Minister for Finance; Minister for Cultural Heritage and Community Services; and Minister for Environment.
How many seats does the Assembly of Norfolk Island eliminate?
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Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Many sensor systems rely on light as the signal source. LEDs are often ideal as a light source due to the requirements of the sensors. LEDs are used as motion sensors, for example in optical computer mice. The Nintendo Wii's sensor bar uses infrared LEDs. Pulse oximeters use them for measuring oxygen saturation. Some flatbed scanners use arrays of RGB LEDs rather than the typical cold-cathode fluorescent lamp as the light source. Having independent control of three illuminated colors allows the scanner to calibrate itself for more accurate color balance, and there is no need for warm-up. Further, its sensors only need be monochromatic, since at any one time the page being scanned is only lit by one color of light. Since LEDs can also be used as photodiodes, they can be used for both photo emission and detection. This could be used, for example, in a touchscreen that registers reflected light from a finger or stylus. Many materials and biological systems are sensitive to, or dependent on, light. Grow lights use LEDs to increase photosynthesis in plants, and bacteria and viruses can be removed from water and other substances using UV LEDs for sterilization.
What video game console uses infrared LEDs?
A: Nintendo Wii


Context and question: IBM's employee management practices can be traced back to its roots. In 1914, CEO Thomas J. Watson boosted company spirit by creating employee sports teams, hosting family outings, and furnishing a company band. IBM sports teams still continue in the present day; the IBM Big Blue continue to exist as semi-professional company rugby and American football teams. In 1924 the Quarter Century Club, which recognizes employees with 25 years of service, was organized and the first issue of Business Machines, IBM's internal publication, was published. In 1925, the first meeting of the Hundred Percent Club, composed of IBM salesmen who meet their quotas, convened in Atlantic City, New Jersey.
Starting in 1914, for how many years was the IBM internal publication made?
Answer: unanswerable


Question: Beneath the plain lies the Biscayne Aquifer, a natural underground source of fresh water that extends from southern Palm Beach County to Florida Bay, with its highest point peaking around the cities of Miami Springs and Hialeah. Most of the Miami metropolitan area obtains its drinking water from this aquifer. As a result of the aquifer, it is not possible to dig more than 15 to 20 ft (5 to 6 m) beneath the city without hitting water, which impedes underground construction, though some underground parking garages exist. For this reason, the mass transit systems in and around Miami are elevated or at-grade.[citation needed]
Is there an answer to this question: What is limited by Miami's high water table?

Answer: underground construction


Problem: Paris:

Parisian examples of European architecture date back more than a millennium; including the Romanesque church of the Abbey of Saint-Germain-des-Prés (1014-1163); the early Gothic Architecture of the Basilica of Saint-Denis (1144), the Notre Dame Cathedral (1163-1345), the Flamboyant Gothic of Saint Chapelle (1239-1248), the Baroque churches of Saint-Paul-Saint-Louis (1627-1641) and Les Invalides (1670-1708). The 19th century produced the neoclassical church of La Madeleine (1808-1842); the Palais Garnier Opera House (1875); the neo-Byzantine Basilica of Sacré-Cœur (1875-1919), and the exuberant Belle Époque modernism of the Eiffel Tower (1889). Striking examples of 20th century architecture include the Centre Georges Pompidou by Richard Rogers and Renzo Piano (1977), and the Louvre Pyramid by I.M. Pei (1989). Contemporary architecture includes the Musée du Quai Branly by Jean Nouvel (2006) and the new contemporary art museum of the Louis Vuitton Foundation by Frank Gehry (2014).

When was the Eiffel Tower built?
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A:
1889