Problem: Compact disc:

Due to technical limitations, the original ReWritable CD could be written no faster than 4x speed. High Speed ReWritable CD has a different design, which permits writing at speeds ranging from 4x to 12x. Original CD-RW drives can only write to original ReWritable CDs. High Speed CD-RW drives can typically write to both original ReWritable CDs and High Speed ReWritable CDs. Both types of CD-RW discs can be read in most CD drives. Higher speed CD-RW discs, Ultra Speed (16x to 24x write speed) and Ultra Speed+ (32x write speed) are now available.

Which CD has writing speeds betwen 4x and 12x?
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A: High Speed ReWritable CD

Problem: The Heian period (, Heian jidai?) is the last division of classical Japanese history, running from 794 to 1185. The period is named after the capital city of Heian-kyo, or modern Kyoto. It is the period in Japanese history when Buddhism, Taoism and other Chinese influences were at their height. The Heian period is also considered the peak of the Japanese imperial court and noted for its art, especially poetry and literature. Although the Imperial House of Japan had power on the surface, the real power was in the hands of the Fujiwara clan, a powerful aristocratic family who had intermarried with the imperial family. Many emperors actually had mothers from the Fujiwara family. Heian (?) means "peace" in Japanese.
What Japanese dynasty was named after the city of Heian-kyo?
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Answer: unanswerable

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
During the Second Sino-Japanese War, which led into World War II, much of Zhejiang was occupied by Japan and placed under the control of the Japanese puppet state known as the Reorganized National Government of China. Following the Doolittle Raid, most of the B-25 American crews that came down in China eventually made it to safety with the help of Chinese civilians and soldiers. The Chinese people who helped them, however, paid dearly for sheltering the Americans. The Imperial Japanese Army began the Zhejiang-Jiangxi Campaign to intimidate the Chinese out of helping downed American airmen. The Japanese killed an estimated 250,000 civilians while searching for Doolittle's men.
The Japanese puppet state that occupied Zhejiang was called what?
A: the Reorganized National Government of China

Context and question: Eliot and her circle, who included her companion George Henry Lewes (the biographer of Goethe) and the abolitionist and social theorist Harriet Martineau, were much influenced by the positivism of Auguste Comte, whom Martineau had translated. Comte had proposed an atheistic culte founded on human principles a secular Religion of Humanity (which worshiped the dead, since most humans who have ever lived are dead), complete with holidays and liturgy, modeled on the rituals of what was seen as a discredited and dilapidated Catholicism. Although Comte's English followers, like Eliot and Martineau, for the most part rejected the full gloomy panoply of his system, they liked the idea of a religion of humanity. Comte's austere vision of the universe, his injunction to "vivre pour altrui" ("live for others", from which comes the word "altruism"), and his idealisation of women inform the works of Victorian novelists and poets from George Eliot and Matthew Arnold to Thomas Hardy.
What abolitionist was barely affected by the writings of Comte?
Answer: unanswerable

Question: If the Spanish monarch ever refused in conscience to grant royal assent, a procedure similar to the Belgian handling of King Baudouin's objection would not be possible under the current constitution. If the sovereign were ever declared incapable of discharging royal authority, his or her powers would not be transferred to the Cabinet, pending the parliamentary appointment of a regency. Instead, the constitution mandates the next person of age in the line of succession would immediately become regent. Therefore, had Juan Carlos followed the Belgian example in 2005 or 2010, a declaration of incapacity would have transferred power to Felipe, then the heir apparent.
Is there an answer to this question: If Juan Carlos had been declared capable, who would have been given power?

Answer: unanswerable

Question: The Trans-Alaska Pipeline can transport and pump up to 2.1 million barrels (330,000 m3) of crude oil per day, more than any other crude oil pipeline in the United States. Additionally, substantial coal deposits are found in Alaska's bituminous, sub-bituminous, and lignite coal basins. The United States Geological Survey estimates that there are 85.4 trillion cubic feet (2,420 km3) of undiscovered, technically recoverable gas from natural gas hydrates on the Alaskan North Slope. Alaska also offers some of the highest hydroelectric power potential in the country from its numerous rivers. Large swaths of the Alaskan coastline offer wind and geothermal energy potential as well.
Is there an answer to this question: How much unrecoverable gas is still undiscovered in Alaska, according to the US Geological Survey?

Answer:
unanswerable