Problem: Kievan Rus%27:

Yaroslav, known as "the Wise", struggled for power with his brothers. A son of Vladimir the Great, he was vice-regent of Novgorod at the time of his father's death in 1015. Subsequently, his eldest surviving brother, Svyatopolk the Accursed, killed three of his other brothers and seized power in Kiev. Yaroslav, with the active support of the Novgorodians and the help of Viking mercenaries, defeated Svyatopolk and became the grand prince of Kiev in 1019. Although he first established his rule over Kiev in 1019, he did not have uncontested rule of all of Kievan Rus' until 1036. Like Vladimir, Yaroslav was eager to improve relations with the rest of Europe, especially the Byzantine Empire. Yaroslav's granddaughter, Eupraxia the daughter of his son Vsevolod I, Prince of Kiev, was married to Henry III, Holy Roman Emperor. Yaroslav also arranged marriages for his sister and three daughters to the kings of Poland, France, Hungary and Norway. Yaroslav promulgated the first East Slavic law code, Russkaya Pravda; built Saint Sophia Cathedral in Kiev and Saint Sophia Cathedral in Novgorod; patronized local clergy and monasticism; and is said to have founded a school system. Yaroslav's sons developed the great Kiev Pechersk Lavra (monastery), which functioned in Kievan Rus' as an ecclesiastical academy.

Who was the daughter of Vladimir the Great?
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A: unanswerable

Problem: Most wrestling matches last for a set number of falls, with the first side to achieve the majority number of pinfalls, submissions, or countouts being the winner. Historically, matches were wrestled to 3 falls ("best 2 out of 3") or 5 falls ("best 3 out of 5"). The standard for modern matches is one fall. However, even though it is now standard, many announcers will explicitly state this (e.g. "The following contest is set for one fall with a 20-minute time limit"). These matches are given a time limit; if not enough falls are scored by the end of the time limit, the match is declared a draw. Modern matches are generally given a 10- to 30-minute time limit for standard matches; title matches can go for up to one hour. British wrestling matches held under Admiral-Lord Mountevans rules are 2 out of 3 falls.
How long can a title match be?
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Answer: title matches can go for up to one hour

Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Since the Three Kingdoms period, Nanjing has been an industrial centre for textiles and minting owing to its strategic geographical location and convenient transportation. During the Ming dynasty, Nanjing's industry was further expanded, and the city became one of the most prosperous cities in China and the world. It led in textiles, minting, printing, shipbuilding and many other industries, and was the busiest business center in East Asia. Textiles boomed particularly in Qing dynasty, the industry created around 200 thousand jobs and there were about 50 thousand satin machines in the city in 18th and 19th century.
In addition to textiles, what other industry is Nanjing known for, since the Three Kingdoms period?
A: minting

Context and question: Despite the dominance of the above formula, there are documented attempts of the financial industry, occurring before the crisis, to address the formula limitations, specifically the lack of dependence dynamics and the poor representation of extreme events. The volume "Credit Correlation: Life After Copulas", published in 2007 by World Scientific, summarizes a 2006 conference held by Merrill Lynch in London where several practitioners attempted to propose models rectifying some of the copula limitations. See also the article by Donnelly and Embrechts and the book by Brigo, Pallavicini and Torresetti, that reports relevant warnings and research on CDOs appeared in 2006.
When did relevant warnings and research on CDOs appear in an article by Donnelly and Embrechts?
Answer: 2006

Question: Comparing diets among Western countries, researchers have discovered that although the French tend to eat higher levels of animal fat, the incidence of heart disease remains low in France. This phenomenon has been termed the French paradox, and is thought to occur from protective benefits of regularly consuming red wine. Apart from potential benefits of alcohol itself, including reduced platelet aggregation and vasodilation, polyphenols (e.g., resveratrol) mainly in the grape skin provide other suspected health benefits, such as:
Is there an answer to this question: What kind of the wine is regularly consumed by the French?

Answer: red wine

QUES: During a panel discussion at Harvard University's reunion for African American alumni during the 200304 academic year, two prominent black professors at the institutionLani Guinier and Henry Louis Gatespointed out an unintended effect of affirmative action policies at Harvard. They stated that only about a third of black Harvard undergraduates were from families in which all four grandparents were born into the African American community. The majority of black students at Harvard were Caribbean and African immigrants or their children, with some others the mixed-race children of biracial couples. One Harvard student, born in the South Bronx to a black family whose ancestors have been in the United States for multiple generations, said that there were so few Harvard students from the historic African American community that they took to calling themselves "the descendants" (i.e., descendants of American slaves). The reasons for this underrepresentation of historic African Americans, and possible remedies, remain a subject of debate.

What did two prominent black professors point out at the panel discussion?
What is the answer?
ANS:
an unintended effect of affirmative action policies at Harvard