Problem: Elevator:

The low mechanical complexity of hydraulic elevators in comparison to traction elevators makes them ideal for low rise, low traffic installations. They are less energy efficient as the pump works against gravity to push the car and its passengers upwards; this energy is lost when the car descends on its own weight. The high current draw of the pump when starting up also places higher demands on a building's electrical system. There are also environmental concerns should the lifting cylinder leak fluid into the ground.

What type of installations are hydraulic elevators best suited for?
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A: low rise, low traffic installations

Problem: The distinctive characteristic of Gothic cathedrals of the Iberian Peninsula is their spatial complexity, with many areas of different shapes leading from each other. They are comparatively wide, and often have very tall arcades surmounted by low clerestories, giving a similar spacious appearance to the 'Hallenkirche of Germany, as at the Church of the Batalha Monastery in Portugal. Many of the cathedrals are completely surrounded by chapels. Like English cathedrals, each is often stylistically diverse. This expresses itself both in the addition of chapels and in the application of decorative details drawn from different sources. Among the influences on both decoration and form are Islamic architecture and, towards the end of the period, Renaissance details combined with the Gothic in a distinctive manner. The West front, as at Leon Cathedral, typically resembles a French west front, but wider in proportion to height and often with greater diversity of detail and a combination of intricate ornament with broad plain surfaces. At Burgos Cathedral there are spires of German style. The roofline often has pierced parapets with comparatively few pinnacles. There are often towers and domes of a great variety of shapes and structural invention rising above the roof.
What style are the spires at Burgos Cathedral?
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Answer: German style

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The Royal Collection, which includes thousands of historic works of art and the Crown Jewels, is not owned by the Queen personally but is held in trust, as are her official residences, such as Buckingham Palace and Windsor Castle, and the Duchy of Lancaster, a property portfolio valued in 2014 at 442 million. Sandringham House and Balmoral Castle are privately owned by the Queen. The British Crown Estate with holdings of 9.4 billion in 2014 is held in trust by the sovereign and cannot be sold or owned by Elizabeth in a private capacity.
Where are the Crown Jewels on display?
A: unanswerable

Context and question: The islands are at relatively low altitudes, with central Ireland and southern Great Britain particularly low lying: the lowest point in the islands is Holme, Cambridgeshire at 2.75 m (9.02 ft). The Scottish Highlands in the northern part of Great Britain are mountainous, with Ben Nevis being the highest point on the islands at 1,343 m (4,406 ft). Other mountainous areas include Wales and parts of Ireland, however only seven peaks in these areas reach above 1,000 m (3,281 ft). Lakes on the islands are generally not large, although Lough Neagh in Northern Ireland is an exception, covering 150 square miles (390 km2).[citation needed] The largest freshwater body in Great Britain (by area) is Loch Lomond at 27.5 square miles (71 km2), and Loch Ness, by volume whilst Loch Morar is the deepest freshwater body in the British Isles, with a maximum depth of 310 m (1,017 ft). There are a number of major rivers within the British Isles. The longest is the Shannon in Ireland at 224 mi (360 km).[citation needed] The river Severn at 220 mi (354 km)[citation needed] is the longest in Great Britain. The isles have a temperate marine climate. The North Atlantic Drift ("Gulf Stream") which flows from the Gulf of Mexico brings with it significant moisture and raises temperatures 11 C (20 F) above the global average for the islands' latitudes. Winters are cool and wet, with summers mild and also wet. Most Atlantic depressions pass to the north of the islands, combined with the general westerly circulation and interactions with the landmass, this imposes an east-west variation in climate.
What is the longest river in Ireland?
Answer: the Shannon

Question: Following the unveiling of Windows 8, Microsoft faced criticism (particularly from free software supporters) for mandating that devices receiving its optional certification for Windows 8 have secure boot enabled by default using a key provided by Microsoft. Concerns were raised that secure boot could prevent or hinder the use of alternate operating systems such as Linux. In a post discussing secure boot on the Building Windows 8 blog, Microsoft developer Tony Mangefeste indicated that vendors would provide means to customize secure boot, stating that "At the end of the day, the customer is in control of their PC. Microsoft's philosophy is to provide customers with the best experience first, and allow them to make decisions themselves." Microsoft's certification guidelines for Windows 8 ultimately revealed that vendors would be required to provide means for users to re-configure or disable secure boot in their device's UEFI firmware. It also revealed that ARM devices (Windows RT) would be required to have secure boot permanently enabled, with no way for users to disable it. However, Tom Warren of The Verge noted that other vendors have implemented similar hardware restrictions on their own ARM-based tablet and smartphone products (including those running Microsoft's own Windows Phone platform), but still argued that Microsoft should "keep a consistent approach across ARM and x86, though, not least because of the number of users who'd love to run Android alongside Windows 8 on their future tablets." No mandate is made regarding the installation of third-party certificates that would enable running alternative programs.
Is there an answer to this question: Who isn't Tony Mangefeste?

Answer: unanswerable

Problem: Westminster Abbey:

The exhibits include a collection of royal and other funeral effigies (funeral saddle, helm and shield of Henry V), together with other treasures, including some panels of mediaeval glass, 12th-century sculpture fragments, Mary II's coronation chair and replicas of the coronation regalia, and historic effigies of Edward III, Henry VII and his queen, Elizabeth of York, Charles II, William III, Mary II and Queen Anne.

What not belonging to Henry V is in the museum?
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A:
unanswerable