Problem: Catalan language:

The decline of Catalan continued in the 16th and 17th centuries. The Catalan defeat in the War of Spanish Succession (1714) initiated a series of measures imposing the use of Spanish in legal documentation.

What did the war in 1714 mandate as the proper language in documentation?
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A: Spanish


Problem: Even with the five largest cities in Sichuan suffering only minor damage from the quake, some estimates of the economic loss run higher than US$75 billion, making the earthquake one of the costliest natural disasters in Chinese history.
What damage did the major Sichuan cities have?
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Answer: minor damage


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Palermo has at least 2 circuits of City Walls - many pieces of which still survive. The first circuit surrounded the ancient core of the punic City - the so-called Palaeopolis (in the area east of Porta Nuova) and the Neopolis. Via Vittorio Emanuele was the main road east-west through this early walled city. The eastern edge of the walled city was on Via Roma and the ancient port in the vicinity of Piazza Marina. The wall circuit was approximately Porto Nuovo, Corso Alberti, Piazza Peranni, Via Isodoro, Via Candela, Via Venezia, Via Roma, Piazza Paninni, Via Biscottari, Via Del Bastione, Palazzo dei Normanni and back to Porto Nuovo.
On what road was the eastern edge of the walled city?
A: Via Roma


Context and question: The Qing dynasty (1644–1911) was founded after the fall of the Ming, the last Han Chinese dynasty, by the Manchus. The Manchus were formerly known as the Jurchens. When Beijing was captured by Li Zicheng's peasant rebels in 1644, the Chongzhen Emperor, the last Ming emperor, committed suicide. The Manchus then allied with former Ming general Wu Sangui and seized control of Beijing, which became the new capital of the Qing dynasty. The Mancus adopted the Confucian norms of traditional Chinese government in their rule of China proper. Schoppa, the editor of The Columbia Guide to Modern Chinese History argues, "A date around 1780 as the beginning of modern China is thus closer to what we know today as historical 'reality'. It also allows us to have a better baseline to understand the precipitous decline of the Chinese polity in the nineteenth and twentieth centuries."
During what time period did the Qing dynasty rule?
Answer: 1644–1911


Question: Today, nearly all commonly used video compression methods (e.g., those in standards approved by the ITU-T or ISO) apply a discrete cosine transform (DCT) for spatial redundancy reduction. The DCT that is widely used in this regard was introduced by N. Ahmed, T. Natarajan and K. R. Rao in 1974. Other methods, such as fractal compression, matching pursuit and the use of a discrete wavelet transform (DWT) have been the subject of some research, but are typically not used in practical products (except for the use of wavelet coding as still-image coders without motion compensation). Interest in fractal compression seems to be waning, due to recent theoretical analysis showing a comparative lack of effectiveness of such methods.
Is there an answer to this question: What is not used in DWT?

Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Icelandic and Faroese have preaspirated [ʰp ʰt ʰk]; some scholars interpret these as consonant clusters as well. In Icelandic, preaspirated stops contrast with double stops and single stops:
What stops contrast with triple and single stops?
A:
unanswerable