Problem: Kievan Rus%27:

In 941, Igor led another major Rus' attack on Constantinople, probably over trading rights again. A navy of 10,000 vessels, including Pecheneg allies, landed on the Bithynian coast and devastated the Asiatic shore of the Bosphorus. The attack was well-timed, perhaps due to intelligence, as the Byzantine fleet was occupied with the Arabs in the Mediterranean, and the bulk of its army was stationed in the east. The Rus’ burned towns, churches, and monasteries, butchering the people and amassing booty. The emperor arranged for a small group of retired ships to be outfitted with Greek fire throwers and sent them out to meet the Rus’, luring them into surrounding the contingent before unleashing the Greek fire. Liutprand of Cremona wrote that "the Rus', seeing the flames, jumped overboard, preferring water to fire. Some sank, weighed down by the weight of their breastplates and helmets; others caught fire." Those captured were beheaded. The ploy dispelled the Rus’ fleet, but their attacks continued into the hinterland as far as Nicomedia, with many atrocities reported as victims were crucified and set up for use as targets. At last a Byzantine army arrived from the Balkans to drive the Rus' back, and a naval contingent reportedly destroyed much of the Rus' fleet on its return voyage (possibly an exaggeration since the Rus' soon mounted another attack). The outcome indicates increased military might by Byzantium since 911, suggesting a shift in the balance of power.

What year was the Rus fleet defeated?
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A: unanswerable


Problem: Humans have shown extreme inventiveness in devising clothing solutions to environmental hazards. Examples include: space suits, air conditioned clothing, armor, diving suits, swimsuits, bee-keeper gear, motorcycle leathers, high-visibility clothing, and other pieces of protective clothing. Meanwhile, the distinction between clothing and protective equipment is not always clear-cut—since clothes designed to be fashionable often have protective value and clothes designed for function often consider fashion in their design. Wearing clothes also has social implications. They cover parts of the body that social norms require to be covered, act as a form of adornment, and serve other social purposes.
What do social norms not require of clothes?
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Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Turner Classic Movies essentially operates as a commercial-free service, with the only advertisements on the network being shown between features – which advertise TCM products, network promotions for upcoming special programs and the original trailers for films that are scheduled to be broadcast on TCM (particularly those that will air during the primetime hours), and featurettes about classic film actors and actresses. In addition to this, extended breaks between features are filled with theatrically released movie trailers and classic short subjects – from series such as The Passing Parade, Crime Does Not Pay, Pete Smith Specialties, and Robert Benchley – under the banner name TCM Extras (formerly One Reel Wonders). In 2007, some of the short films featured on TCM were made available for streaming on TCM's website. Partly to allow these interstitials, Turner Classic Movies schedules its feature films either at the top of the hour or at :15, :30 or :45 minutes past the hour, instead of in timeslots of varying five-minute increments.
What short subjects feature on primetime hours along with The Passing Parade, Crime Does Not Pay and Pete Smith Specialties?
A: unanswerable


Context and question: In an interrogative main clause the usual word order is: conjugated verb followed by subject; other verbs in final position: "Kun jij je pen niet vinden?" (literally "Can you your pen not find?") "Can't you find your pen?"
In the Dutch equivalent of a wh-question the word order is: interrogative pronoun (or expression) + conjugated verb + subject; other verbs in final position: "Waarom kun jij je pen niet vinden?" ("Why can you your pen not find?") "Why can't you find your pen?""
In a tag question the word order is the same as in a declarative clause: "Jij kunt je pen niet vinden?" ("You can your pen not find?") "You can't find your pen?""
A subordinate clause does not change its word order: "Kun jij je pen niet vinden omdat het veel te donker is?" ("Can you your pen not find because it far too dark is?") "Can you not find your pen because it's too dark?""
What type of clause has the same word order in Dutch as a tag question?
Answer: declarative clause


Question: Some of the earliest recorded observations ever made through a telescope, Galileo's drawings on 28 December 1612 and 27 January 1613, contain plotted points that match up with what is now known to be the position of Neptune. On both occasions, Galileo seems to have mistaken Neptune for a fixed star when it appeared close—in conjunction—to Jupiter in the night sky; hence, he is not credited with Neptune's discovery. At his first observation in December 1612, Neptune was almost stationary in the sky because it had just turned retrograde that day. This apparent backward motion is created when Earth's orbit takes it past an outer planet. Because Neptune was only beginning its yearly retrograde cycle, the motion of the planet was far too slight to be detected with Galileo's small telescope. In July 2009, University of Melbourne physicist David Jamieson announced new evidence suggesting that Galileo was at least aware that the 'star' he had observed had moved relative to the fixed stars.
Is there an answer to this question: Who proved that the the star Galileo observed was fixed?

Answer: unanswerable


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The celebrated John Duns Scotus (d. 1308), a Friar Minor like Saint Bonaventure, argued, on the contrary, that from a rational point of view it was certainly as little derogatory to the merits of Christ to assert that Mary was by him preserved from all taint of sin, as to say that she first contracted it and then was delivered. Proposing a solution to the theological problem of reconciling the doctrine with that of universal redemption in Christ, he argued that Mary's immaculate conception did not remove her from redemption by Christ; rather it was the result of a more perfect redemption granted her because of her special role in salvation history.
What did St. Bonaventure argue?
A:
unanswerable