Problem: London:

London contains four World Heritage Sites: the Tower of London; Kew Gardens; the site comprising the Palace of Westminster, Westminster Abbey, and St Margaret's Church; and the historic settlement of Greenwich (in which the Royal Observatory, Greenwich marks the Prime Meridian, 0° longitude, and GMT). Other famous landmarks include Buckingham Palace, the London Eye, Piccadilly Circus, St Paul's Cathedral, Tower Bridge, Trafalgar Square, and The Shard. London is home to numerous museums, galleries, libraries, sporting events and other cultural institutions, including the British Museum, National Gallery, Tate Modern, British Library and 40 West End theatres. The London Underground is the oldest underground railway network in the world.

Where does Greenwich Mean Time marked?
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A: the Royal Observatory, Greenwich


Problem: Although the 1945–1949 expulsion of Germans from the northern part of former East Prussia was often conducted in a violent and aggressive way by Soviet officials, the present Russian inhabitants of the Kaliningrad Oblast have much less animosity towards Germans. German names have been revived in commercial Russian trade and there is sometimes talk of reverting Kaliningrad's name to its historic name of Königsberg. The city centre of Kaliningrad was completely rebuilt, as British bombs in 1944 and the Soviet siege in 1945 had left it in nothing but ruins.
What has since been considered in Kalinigrad?
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Answer: reverting Kaliningrad's name to its historic name of Königsberg


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The second decline was not as complete as the first. Thousands of people had learned to play the instrument. Even as the second wave of mandolin popularity declined in the early 20th century, new versions of the mandolin began to be used in new forms of music. Luthiers created the resonator mandolin, the flatback mandolin, the carved-top or arched-top mandolin, the mandolin-banjo and the electric mandolin. Musicians began playing it in Celtic, Bluegrass, Jazz and Rock-n-Roll styles — and Classical too.
When was the second rise of mandolin popularity?
A: unanswerable


Context and question: Ibn Sīnā refers to the secondary education stage of maktab schooling as a period of specialisation when pupils should begin to acquire manual skills, regardless of their social status. He writes that children after the age of 14 should be allowed to choose and specialise in subjects they have an interest in, whether it was reading, manual skills, literature, preaching, medicine, geometry, trade and commerce, craftsmanship, or any other subject or profession they would be interested in pursuing for a future career. He wrote that this was a transitional stage and that there needs to be flexibility regarding the age in which pupils graduate, as the student's emotional development and chosen subjects need to be taken into account.
What type of skills did Ibn Sina state children should learn in secondary education?
Answer: manual skills


Question: Some contemporaries alleged that Bonaparte was put under house arrest at Nice for his association with the Robespierres following their fall in the Thermidorian Reaction in July 1794, but Napoleon's secretary Bourrienne disputed the allegation in his memoirs. According to Bourrienne, jealousy was responsible, between the Army of the Alps and the Army of Italy (with whom Napoleon was seconded at the time). Bonaparte dispatched an impassioned defense in a letter to the commissar Salicetti, and he was subsequently acquitted of any wrongdoing.
Is there an answer to this question: When did the Thermidorian Reaction take place?

Answer: July 1794


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
For example, the full name of Oda Nobunaga would be "Oda Kazusanosuke Saburo Nobunaga" (織田上総介三郎信長), in which "Oda" is a clan or family name, "Kazusanosuke" is a title of vice-governor of Kazusa province, "Saburo" is a formal nickname (yobina), and "Nobunaga" is an adult name (nanori) given at genpuku, the coming of age ceremony. A man was addressed by his family name and his title, or by his yobina if he did not have a title. However, the nanori was a private name that could be used by only a very few, including the Emperor.
What did Oda mean?
A:
a clan or family name