Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
This changed with the recent sovereign-debt crisis. The ECB always could, and through the late summer of 2011 did, purchase bonds issued by the weaker states even though it assumes, in doing so, the risk of a deteriorating balance sheet. ECB buying focused primarily on Spanish and Italian debt. Certain techniques can minimise the impact. Purchases of Italian bonds by the central bank, for example, were intended to dampen international speculation and strengthen portfolios in the private sector and also the central bank.
What risk is assumed when the ECB purchases bonds from weaker states?
A: a deteriorating balance sheet

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Throughout their history, the Liberals have been in electoral terms largely the party of the middle class (whom Menzies, in the era of the party's formation called "The forgotten people"), though such class-based voting patterns are no longer as clear as they once were. In the 1970s a left-wing middle class emerged that no longer voted Liberal.[citation needed] One effect of this was the success of a breakaway party, the Australian Democrats, founded in 1977 by former Liberal minister Don Chipp and members of minor liberal parties; other members of the left-leaning section of the middle-class became Labor supporters.[citation needed] On the other hand, the Liberals have done increasingly well in recent years among socially conservative working-class voters.[citation needed]However the Liberal Party's key support base remains the upper-middle classes; 16 of the 20 richest federal electorates are held by the Liberals, most of which are safe seats. In country areas they either compete with or have a truce with the Nationals, depending on various factors.
Which former liberal founded the Australian Democrats in 1977?
A: Don Chipp

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A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power. It is composed of semiconductor material with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor's terminals changes the current through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal. Today, some transistors are packaged individually, but many more are found embedded in integrated circuits.
What is a transistor made of?
A: semiconductor material

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Bahrain's prime minister, Sheikh Khalifah bin Sulman Al Khalifah has been in the post since 1970, making him the longest serving non-elected prime minister.
When did Khalifa first take the post of prime minister?
A:
1970