Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In his dissent to the majority report of the Financial Crisis Inquiry Commission, American Enterprise Institute fellow Peter J. Wallison stated his belief that the roots of the financial crisis can be traced directly and primarily to affordable housing policies initiated by HUD in the 1990s and to massive risky loan purchases by government-sponsored entities Fannie Mae and Freddie Mac. Later, based upon information in the SEC's December 2011 securities fraud case against 6 ex-executives of Fannie and Freddie, Peter Wallison and Edward Pinto estimated that, in 2008, Fannie and Freddie held 13 million substandard loans totaling over $2 trillion.
How many ex-executives of Fannie and Freddie were named in the SEC's December 2011 securities fraud case?
A: 6

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
According to Eurostat, the EU statistical agency, in 2012 the Commune of Paris was the most densely populated city in the European Union, with 21,616 people per square kilometre within the city limits (the NUTS-3 statistical area), ahead of Inner London West, which had 10,374 people per square kilometre. According to the same census, three departments bordering Paris, Hauts-de-Seine, Seine-Saint-Denis and Val-de-Marne, had population densities of over ten thousand people per square kilometre, ranking among the ten most densely populated areas of the EU.
How many people lived per square kilometer in the city limits?
A: 21,616

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Islam and Judaism have a complex relationship. Traditionally Jews and Christians living in Muslim lands, known as dhimmis, were allowed to practice their religions and administer their internal affairs, but they were subject to certain conditions. They had to pay the jizya (a per capita tax imposed on free adult non-Muslim males) to the Islamic state. Dhimmis had an inferior status under Islamic rule. They had several social and legal disabilities such as prohibitions against bearing arms or giving testimony in courts in cases involving Muslims. Many of the disabilities were highly symbolic. The one described by Bernard Lewis as "most degrading" was the requirement of distinctive clothing, not found in the Quran or hadith but invented in early medieval Baghdad; its enforcement was highly erratic. On the other hand, Jews rarely faced martyrdom or exile, or forced compulsion to change their religion, and they were mostly free in their choice of residence and profession.
What was the disability described by Bernard Lewis as "most degrading?"
A: requirement of distinctive clothing

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Most types of capacitor include a dielectric spacer, which increases their capacitance. These dielectrics are most often insulators. However, low capacitance devices are available with a vacuum between their plates, which allows extremely high voltage operation and low losses. Variable capacitors with their plates open to the atmosphere were commonly used in radio tuning circuits. Later designs use polymer foil dielectric between the moving and stationary plates, with no significant air space between them.
How did the capacitor traditionally used in radio tuning circuits stay the same over time?
A:
unanswerable