Problem: Bern:

Albert Einstein lived in a flat at the Kramgasse 49, the site of the Einsteinhaus, from 1903 to 1905, the year in which the Annus Mirabilis Papers were published.

Where is Albert Einstein live?
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A: the Kramgasse 49


Problem: There has, however, been interest among railroad operators in returning to DC use at higher voltages than previously used. At the same voltage, DC often has less loss than AC, and for this reason high-voltage direct current is already used on some bulk power transmission lines. DC avoids the electromagnetic radiation inherent with AC, and on a railway this also reduces interference with signalling and communications and mitigates hypothetical EMF risks. DC also avoids the power factor problems of AC. Of particular interest to railroading is that DC can supply constant power with a single ungrounded wire. Constant power with AC requires three-phase transmission with at least two ungrounded wires. Another important consideration is that mains-frequency 3-phase AC must be carefully planned to avoid unbalanced phase loads. Parts of the system are supplied from different phases on the assumption that the total loads of the 3 phases will even out. At the phase break points between regions supplied from different phases, long insulated supply breaks are required to avoid them being shorted by rolling stock using more than one pantograph at a time. A few railroads have tried 3-phase but its substantial complexity has made single-phase standard practice despite the interruption in power flow that occurs twice every cycle. An experimental 6 kV DC railway was built in the Soviet Union.
Where was an experimental 6kV DC railway built?
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Answer: the Soviet Union


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Because of the general instability of the federal government during 1828, the installation of the new legislature did not take place until the middle of the following year. It was quickly dissolved by Governor Santiago de Baca Ortiz, who replaced it with a more pronounced Yorkino type. When Guerrero's liberal administration was overthrown in December, Gaspar de Ochoa aligned with Anastasio Bustamante, and in February 1830, organized an opposition group that arrested the new governor, F. Elorriaga, along with other prominent Yorkinos. He then summoned the legislature, which had been dissolved by Baca. The civil and military authorities were now headed by J. A. Pescador and Simón Ochoa.
Which new governor was arrested by Ochoa and Bustamente?
A: F. Elorriaga


Context and question: ^7 A census category recognized as an ethnic group. Most Slavic Muslims (especially in Bosnia, Croatia, Montenegro and Serbia) now opt for Bosniak ethnicity, but some still use the "Muslim" designation. Bosniak and Muslim are considered two ethnonyms for a single ethnicity and the terms may even be used interchangeably. However, a small number of people within Bosnia and Herzegovina declare themselves Bosniak but are not necessarily Muslim by faith.
Which areas tend to use the Muslim designation?
Answer: unanswerable


Question: In the early 1980s, rapidly rising oil revenues enabled the government to finance large-scale development projects with GDP growth averaging 5% annually, one of the highest rates in Africa. The government has mortgaged a substantial portion of its petroleum earnings, contributing to a shortage of revenues. January 12, 1994 devaluation of Franc Zone currencies by 50% resulted in inflation of 46% in 1994, but inflation has subsided since.
Is there an answer to this question: What contributed to an excess of revenues?

Answer: unanswerable


QUES: Among other inhabitants of London are 10,000 foxes, so that there are now 16 foxes for every square mile (2.6 square kilometres) of London. These urban foxes are noticeably bolder than their country cousins, sharing the pavement with pedestrians and raising cubs in people's backyards. Foxes have even sneaked into the Houses of Parliament, where one was found asleep on a filing cabinet. Another broke into the grounds of Buckingham Palace, reportedly killing some of Queen Elizabeth II's prized pink flamingos. Generally, however, foxes and city folk appear to get along. A survey in 2001 by the London-based Mammal Society found that 80 percent of 3,779 respondents who volunteered to keep a diary of garden mammal visits liked having them around. This sample cannot be taken to represent Londoners as a whole.

What animal was seen sleeping in London's Parliament Building?
What is the answer?
ANS:
fox