Problem: Insect:

Insects can be divided into two groups historically treated as subclasses: wingless insects, known as Apterygota, and winged insects, known as Pterygota. The Apterygota consist of the primitively wingless order of the silverfish (Thysanura). Archaeognatha make up the Monocondylia based on the shape of their mandibles, while Thysanura and Pterygota are grouped together as Dicondylia. The Thysanura themselves possibly are not monophyletic, with the family Lepidotrichidae being a sister group to the Dicondylia (Pterygota and the remaining Thysanura).

What is the term for the class of insects with wings?
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A: Pterygota

Problem: High-voltage AC overhead systems are not only for standard gauge national networks. The meter gauge Rhaetian Railway (RhB) and the neighbouring Matterhorn Gotthard Bahn (MGB) operate on 11 kV at 16.7 Hz frequency. Practice has proven that both Swiss and German 15 kV trains can operate under these lower voltages. The RhB started trials of the 11 kV system in 1913 on the Engadin line (St. Moritz-Scuol/Tarasp). The MGB constituents Furka-Oberalp-Bahn (FO) and Brig-Visp-Zermatt Bahn (BVZ) introduced their electric services in 1941 and 1929 respectively, adopting the already proven RhB system.
The MAB consisted of whom?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In December 2005, Imperial announced a science park programme at the Wye campus, with extensive housing; however, this was abandoned in September 2006 following complaints that the proposal infringed on Areas of Outstanding Natural Beauty, and that the true scale of the scheme, which could have raised 110m for the College, was known to Kent and Ashford Councils and their consultants but concealed from the public. One commentator observed that Imperial's scheme reflected "the state of democracy in Kent, the transformation of a renowned scientific college into a grasping, highly aggressive, neo-corporate institution, and the defence of the status of an Area of Outstanding Natural Beauty throughout England, not just Wye against rampant greed backed by the connivance of two important local authorities. Wye College campus was finally closed in September 2009.
When did Imperial abandon their science park program?
A: September 2006

Context and question: In 2007, the official Xinhua News Agency reported that the resolution of the BeiDou system was as high as 0.5 metres. With the existing user terminals it appears that the calibrated accuracy is 20m (100m, uncalibrated).
According to which news agency was the BeiDou-1X monitor resolution as high as .08 metres?
Answer: unanswerable

Question: The Neapolitan style has an almond-shaped body resembling a bowl, constructed from curved strips of wood. It usually has a bent sound table, canted in two planes with the design to take the tension of the 8 metal strings arranged in four courses. A hardwood fingerboard sits on top of or is flush with the sound table. Very old instruments may use wooden tuning pegs, while newer instruments tend to use geared metal tuners. The bridge is a movable length of hardwood. A pickguard is glued below the sound hole under the strings. European roundbacks commonly use a 13-inch scale instead of the 13.876 common on archtop Mandolins.
Is there an answer to this question: What are the Neapolitan mandolin made of?

Answer: metal strings

In manufacturing the glass bulb, a type of "ribbon machine" is used. A continuous ribbon of glass is passed along a conveyor belt, heated in a furnace, and then blown by precisely aligned air nozzles through holes in the conveyor belt into molds. Thus the glass bulbs are created. After the bulbs are blown, and cooled, they are cut off the ribbon machine; a typical machine of this sort produces 50,000 bulbs per hour. The filament and its supports are assembled on a glass stem, which is fused to the bulb. The air is pumped out of the bulb, and the evacuation tube in the stem press is sealed by a flame. The bulb is then inserted into the lamp base, and the whole assembly tested.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What type of machine manufactures glass light bulbs.
Ah, so..
ribbon machine