Problem: European Central Bank:

This has led to public discussions if Greece, Portugal, and even Italy would be better off leaving the eurozone to regain economical and financial stability if they would not implement reforms to strengthen their competitiveness as part of the eurozone in time. Greece had the greatest need for reforms but also most problems to implement those, so the Greek exit, also called "Grexit", has been widely discussed. Germany, as a large and financially stable state being in the focus to be asked to guarantee or repay other states debt, has never pushed those exits. Their position is to keep Greece within the eurozone, but not at any cost. If the worst comes to the worst, priority should be given to the euro's stability.

What is Spain's position on whether or not Greece should be outside the eurozone?
---
A: unanswerable


Problem: Geologically, West Antarctica closely resembles the Andes mountain range of South America. The Antarctic Peninsula was formed by uplift and metamorphism of sea bed sediments during the late Paleozoic and the early Mesozoic eras. This sediment uplift was accompanied by igneous intrusions and volcanism. The most common rocks in West Antarctica are andesite and rhyolite volcanics formed during the Jurassic period. There is also evidence of volcanic activity, even after the ice sheet had formed, in Marie Byrd Land and Alexander Island. The only anomalous area of West Antarctica is the Ellsworth Mountains region, where the stratigraphy is more similar to East Antarctica.
What caused volcanism on the Antarctic Peninsula?
---
Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The ordinary half-wave dipole is probably the most widely used antenna design. This consists of two 1⁄4-wavelength elements arranged end-to-end, and lying along essentially the same axis (or collinear), each feeding one side of a two-conductor transmission wire. The physical arrangement of the two elements places them 180 degrees out of phase, which means that at any given instant one of the elements is driving current into the transmission line while the other is pulling it out. The monopole antenna is essentially one half of the half-wave dipole, a single 1⁄4-wavelength element with the other side connected to ground or an equivalent ground plane (or counterpoise). Monopoles, which are one-half the size of a dipole, are common for long-wavelength radio signals where a dipole would be impractically large. Another common design is the folded dipole, which is essentially two dipoles placed side-by-side and connected at their ends to make a single one-wavelength antenna.
Elements in a half wave dipole and on an identical axis are said to be what?
A: collinear


Context and question: Following (or leading up to) the schisms, each Saṅgha started to accumulate an Abhidharma, a detailed scholastic reworking of doctrinal material appearing in the Suttas, according to schematic classifications. These Abhidharma texts do not contain systematic philosophical treatises, but summaries or numerical lists. Scholars generally date these texts to around the 3rd century BCE, 100 to 200 years after the death of the Buddha. Therefore the seven Abhidharma works are generally claimed not to represent the words of the Buddha himself, but those of disciples and great scholars.[note 38] Every school had its own version of the Abhidharma, with different theories and different texts. The different Abhidharmas of the various schools did not agree with each other. Scholars disagree on whether the Mahasanghika school had an Abhidhamma Pitaka or not.[note 38]
What is a detailed scholastic reworking of doctrinal material called?
Answer: Abhidharma


Question: In addition, the company provides protection services, advisory services, multivendor hardware support, "how-to" support for software applications, collaborative support with many third-party vendors, and online parts and labor dispatching for customers who diagnose and troubleshoot their hardware. Dell also provides Dell ProSupport customers access to a crisis-center to handle major outages, or problems caused by natural disasters. Dell also provide on-line support by using the computer's service-tag that provides full list of the hardware elements installed originally, purchase date and provides the latest upgrades for the original hardware drivers.
Is there an answer to this question: What kind of hardware support does Dell provide?

Answer: multivendor


Question: Greater London's population declined steadily in the decades after the Second World War, from an estimated peak of 8.6 million in 1939 to around 6.8 million in the 1980s. The principal ports for London moved downstream to Felixstowe and Tilbury, with the London Docklands area becoming a focus for regeneration, including the Canary Wharf development. This was borne out of London's ever-increasing role as a major international financial centre during the 1980s. The Thames Barrier was completed in the 1980s to protect London against tidal surges from the North Sea.
Is there an answer to this question: What event preceded a substantial decrease in the average population in London? 

Answer:
the Second World War