Problem: Printed circuit board:

The first PCBs used through-hole technology, mounting electronic components by leads inserted through holes on one side of the board and soldered onto copper traces on the other side. Boards may be single-sided, with an unplated component side, or more compact double-sided boards, with components soldered on both sides. Horizontal installation of through-hole parts with two axial leads (such as resistors, capacitors, and diodes) is done by bending the leads 90 degrees in the same direction, inserting the part in the board (often bending leads located on the back of the board in opposite directions to improve the part's mechanical strength), soldering the leads, and trimming off the ends. Leads may be soldered either manually or by a wave soldering machine.

In through-hole construction, what are the leads on the front attached to on the back?
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A: copper traces

Problem: A new delimitation of the federal territory keeps being debated in Germany, though "Some scholars note that there are significant differences among the American states and regional governments in other federations without serious calls for territorial changes ...", as political scientist Arthur B. Gunlicks remarks. He summarizes the main arguments for boundary reform in Germany: "... the German system of dual federalism requires strong Lander that have the administrative and fiscal capacity to implement legislation and pay for it from own source revenues. Too many Lander also make coordination among them and with the federation more complicated ...". But several proposals have failed so far; territorial reform remains a controversial topic in German politics and public perception.
What does the system of regional government need in America?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Upon its founding in 1949, West Germany had eleven states. These were reduced to nine in 1952 when three south-western states (South Baden, Wurttemberg-Hohenzollern, and Wurttemberg-Baden) merged to form Baden-Wurttemberg. From 1957, when the French-occupied Saar Protectorate was returned and formed into the Saarland, the Federal Republic consisted of ten states, which are referred to as the "Old States" today. West Berlin was under the sovereignty of the Western Allies and neither a Western German state nor part of one. However, it was in many ways de facto integrated with West Germany under a special status.
Who was South Baden under the authority of?
A: unanswerable

Context and question: Swaziland's currency is pegged to the South African Rand, subsuming Swaziland's monetary policy to South Africa. Customs duties from the Southern African Customs Union, which may equal as much as 70% of government revenue this year, and worker remittances from South Africa substantially supplement domestically earned income. Swaziland is not poor enough to merit an IMF program; however, the country is struggling to reduce the size of the civil service and control costs at public enterprises. The government is trying to improve the atmosphere for foreign direct investment.
From where does Swaziland get customs revenue?
Answer: Southern African Customs Union

Question: It was announced on 19 March 2015 that self-governance for the island would be revoked by the Commonwealth and replaced by a local council with the state of New South Wales providing services to the island. A reason given was that the island had never gained self-sufficiency and was being heavily subsidised by the Commonwealth, by $12.5 million in 2015 alone. It meant that residents would have to start paying Australian income tax, but they would also be covered by Australian welfare schemes such as Centrelink and Medicare.
Is there an answer to this question: What benefits would Norfolk Island residents lose as a result of the new council?

Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
In the greater metropolitan area, 13% of the population live below the poverty line. According to a 2012 report submitted by GHMC to the World Bank, Hyderabad has 1,476 slums with a total population of 1.7 million, of whom 66% live in 985 slums in the "core" of the city (the part that formed Hyderabad before the April 2007 expansion) and the remaining 34% live in 491 suburban tenements. About 22% of the slum-dwelling households had migrated from different parts of India in the last decade of the 20th century, and 63% claimed to have lived in the slums for more than 10 years.:55 Overall literacy in the slums is 6080% and female literacy is 5273%. A third of the slums have basic service connections, and the remainder depend on general public services provided by the government. There are 405 government schools, 267 government aided schools, 175 private schools and 528 community halls in the slum areas.:70 According to a 2008 survey by the Centre for Good Governance, 87.6% of the slum-dwelling households are nuclear families, 18% are very poor, with an income up to 20000 (US$300) per annum, 73% live below the poverty line (a standard poverty line recognised by the Andhra Pradesh Government is 24000 (US$360) per annum), 27% of the chief wage earners (CWE) are casual labour and 38% of the CWE are illiterate. About 3.72% of the slum children aged 514 do not go to school and 3.17% work as child labour, of whom 64% are boys and 36% are girls. The largest employers of child labour are street shops and construction sites. Among the working children, 35% are engaged in hazardous jobs.:59
What percentage of children in Hyderabad are working hazardous jobs?
A:
35%