Problem: Beer:

Drinking chilled beer began with the development of artificial refrigeration and by the 1870s, was spread in those countries that concentrated on brewing pale lager. Chilling beer makes it more refreshing, though below 15.5 °C the chilling starts to reduce taste awareness and reduces it significantly below 10 °C (50 °F). Beer served unchilled—either cool or at room temperature, reveal more of their flavours. Cask Marque, a non-profit UK beer organisation, has set a temperature standard range of 12°–14 °C (53°–57 °F) for cask ales to be served.

What began in the 1780s?
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A: unanswerable


Problem: FC Barcelona had a successful start in regional and national cups, competing in the Campionat de Catalunya and the Copa del Rey. In 1902, the club won its first trophy, the Copa Macaya, and participated in the first Copa del Rey, losing 1–2 to Bizcaya in the final. Hans Gamper — now known as Joan Gamper — became club president in 1908, finding the club in financial difficulty after not winning a competition since the Campionat de Catalunya in 1905. Club president on five separate occasions between 1908 and 1925, he spent 25 years in total at the helm. One of his main achievements was ensuring Barça acquire its own stadium and thus generate a stable income.
When did Joan Gamper become the president of the Barcelona club?
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Answer: 1908


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Railroads have been an important method of transportation in Montana since the 1880s. Historically, the state was traversed by the main lines of three east-west transcontinental routes: the Milwaukee Road, the Great Northern, and the Northern Pacific. Today, the BNSF Railway is the state's largest railroad, its main transcontinental route incorporating the former Great Northern main line across the state. Montana RailLink, a privately held Class II railroad, operates former Northern Pacific trackage in western Montana.
How long have railroads been important since in Montana
A: 1880s


Context and question: Like Finnish, Estonian employs the Latin script as the basis for its alphabet, which adds the letters ä, ö, ü, and õ, plus the later additions š and ž. The letters c, q, w, x and y are limited to proper names of foreign origin, and f, z, š, and ž appear in loanwords and foreign names only. Ö and ü are pronounced similarly to their equivalents in Swedish and German. Unlike in standard German but like Finnish and Swedish (when followed by 'r'), Ä is pronounced [æ], as in English mat. The vowels Ä, Ö and Ü are clearly separate phonemes and inherent in Estonian, although the letter shapes come from German. The letter õ denotes /ɤ/, unrounded /o/, or a close-mid back unrounded vowel. It is almost identical to the Bulgarian ъ /ɤ̞/ and the Vietnamese ơ, and is used to transcribe the Russian ы.
What is another language that uses Latin for its alphabet?
Answer: Finnish


Question: As the image of God grows within man, he learns to rely less on an intellectual pursuit of virtue and more on an affective pursuit of charity and meekness. Meekness and charity guide Christians to acknowledge that they are nothing without the One (God/Christ) who created them, sustains them, and guides them. Thus, man then directs his path to that One, and the love for, and of, Christ guides man's very nature to become centered on the One, and on his neighbor as well. Charity is the manifestation of the pure love of Christ, both for and by His follower.
Is there an answer to this question: Who do Christians not consider to the "One"?

Answer: unanswerable


Problem: Sahara:

People lived on the edge of the desert thousands of years ago since the last ice age. The Sahara was then a much wetter place than it is today. Over 30,000 petroglyphs of river animals such as crocodiles survive, with half found in the Tassili n'Ajjer in southeast Algeria. Fossils of dinosaurs, including Afrovenator, Jobaria and Ouranosaurus, have also been found here. The modern Sahara, though, is not lush in vegetation, except in the Nile Valley, at a few oases, and in the northern highlands, where Mediterranean plants such as the olive tree are found to grow. It was long believed that the region had been this way since about 1600 BCE, after shifts in the Earth's axis increased temperatures and decreased precipitation. However, this theory has recently been called into dispute, when samples taken from several 7 million year old sand deposits led scientists to reconsider the timeline for desertification.

What type of petroglyhps have been found in the Nile Valley?
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A:
unanswerable