Problem: Kievan Rus%27:

It is not clearly documented when the title of the Grand Duke was first introduced, but the importance of the Kiev principality was recognized after the death of Sviatoslav I in 972 and the ensuing struggle between Vladimir the Great and Yaropolk I. The region of Kiev dominated the state of Kievan Rus' for the next two centuries. The Grand Prince ("velikiy kniaz'") of Kiev controlled the lands around the city, and his formally subordinate relatives ruled the other cities and paid him tribute. The zenith of the state's power came during the reigns of Vladimir the Great (980–1015) and Prince Yaroslav I the Wise (1019–1054). Both rulers continued the steady expansion of Kievan Rus' that had begun under Oleg.

When was the title of Grand Duke introduced?
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A: unanswerable


Problem: New Haven, Connecticut:

The Knights of Columbus, the world's largest Catholic fraternal service organization and a Fortune 1000 company, is headquartered in New Haven. Two more Fortune 1000 companies are based in Greater New Haven: the electrical equipment producers Hubbell, based in Orange, and Amphenol, based in Wallingford. Eight Courant 100 companies are based in Greater New Haven, with four headquartered in New Haven proper. New Haven-based companies traded on stock exchanges include NewAlliance Bank, the second largest bank in Connecticut and fourth-largest in New England (NYSE: NAL), Higher One Holdings (NYSE: ONE), a financial services firm United Illuminating, the electricity distributor for southern Connecticut (NYSE: UIL), Achillion Pharmaceuticals (NASDAQ: ACHN), Alexion Pharmaceuticals (NasdaqGS: ALXN), and Transpro Inc. (AMEX: TPR). Vion Pharmaceuticals is traded OTC (OTC BB: VIONQ.OB). Other notable companies based in the city include the Peter Paul Candy Manufacturing Company (the candy-making division of the Hershey Company), the American division of Assa Abloy (one of the world's leading manufacturers of locks), Yale University Press, and the Russell Trust Association (the business arm of the Skull and Bones Society). The Southern New England Telephone Company (SNET) began operations in the city as the District Telephone Company of New Haven in 1878; the company remains headquartered in New Haven as a subsidiary of AT&T Inc., now doing business as AT&T Connecticut, and provides telephone service for all but two municipalities in Connecticut.

What Fortune 1000 company, also the largest Catholic service organization in the world, is based in New Haven?
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A: The Knights of Columbus


Problem: Asthma:

While asthma is a well recognized condition, there is not one universal agreed upon definition. It is defined by the Global Initiative for Asthma as "a chronic inflammatory disorder of the airways in which many cells and cellular elements play a role. The chronic inflammation is associated with airway hyper-responsiveness that leads to recurrent episodes of wheezing, breathlessness, chest tightness and coughing particularly at night or in the early morning. These episodes are usually associated with widespread but variable airflow obstruction within the lung that is often reversible either spontaneously or with treatment".

What main components play a role in asthma?
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A: many cells and cellular elements play a role


Problem: Dog:

The origin of the domestic dog (Canis lupus familiaris or Canis familiaris) is not clear. Whole genome sequencing indicates that the dog, the gray wolf and the extinct Taymyr wolf diverged at around the same time 27,000–40,000 years ago. These dates imply that the earliest dogs arose in the time of human hunter-gatherers and not agriculturists. Modern dogs are more closely related to ancient wolf fossils that have been found in Europe than they are to modern gray wolves. Nearly all dog breeds' genetic closeness to the gray wolf are due to admixture, except several Arctic dog breeds are close to the Taimyr wolf of North Asia due to admixture.

Due to admixture, what species are many Arctic dogs related to?
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A:
Taimyr wolf of North Asia