Input: Read this: Once inside the Rotunda for the Charters of Freedom, there are no lines to see the individual documents and visitors are allowed to walk from document to document as they wish. For over 30 years the National Archives have forbidden flash photography but the advent of cameras with automatic flashes have made the rules increasingly difficult to enforce. As a result, all filming, photographing, and videotaping by the public in the exhibition areas has been prohibited since February 25, 2010.
Question: For how long has the National Archives prohibited flash photography?

Output: over 30 years


QUES: As of 2015[update], Nigeria is the world's 20th largest economy, worth more than $500 billion and $1 trillion in terms of nominal GDP and purchasing power parity respectively. It overtook South Africa to become Africa's largest economy in 2014. Also, the debt-to-GDP ratio is only 11 percent, which is 8 percent below the 2012 ratio. Nigeria is considered to be an emerging market by the World Bank; It has been identified as a regional power on the African continent, a middle power in international affairs, and has also been identified as an emerging global power. Nigeria is a member of the MINT group of countries, which are widely seen as the globe's next "BRIC-like" economies. It is also listed among the "Next Eleven" economies set to become among the biggest in the world. Nigeria is a founding member of the Commonwealth of Nations, the African Union, OPEC, and the United Nations amongst other international organisations.

When did Nigeria's economy become larger than South Africa's?
What is the answer?
ANS: 2014


QUES: Non-English terms for air defence include the German Flak (Fliegerabwehrkanone, "aircraft defence cannon", also cited as Flugabwehrkanone), whence English flak, and the Russian term Protivovozdushnaya oborona (Cyrillic: Противовозду́шная оборо́на), a literal translation of "anti-air defence", abbreviated as PVO. In Russian the AA systems are called zenitnye (i.e. "pointing to zenith") systems (guns, missiles etc.). In French, air defence is called DCA (Défense contre les aéronefs, "aéronef" being the generic term for all kind of airborne device (airplane, airship, balloon, missile, rocket, etc.)).
How is the Russian term for air defence abbreviated?

ANS: PVO


Since the late twentieth century, the number of African and Caribbean ethnic African immigrants have increased in the United States. Together with publicity about the ancestry of President Barack Obama, whose father was from Kenya, some black writers have argued that new terms are needed for recent immigrants. They suggest that the term "African-American" should refer strictly to the descendants of African slaves and free people of color who survived the slavery era in the United States. They argue that grouping together all ethnic Africans regardless of their unique ancestral circumstances would deny the lingering effects of slavery within the American slave descendant community. They say recent ethnic African immigrants need to recognize their own unique ancestral backgrounds.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What must Africans who recently immigrated do?
Ah, so.. recognize their own unique ancestral backgrounds


Question: Lee and freelance artist and eventual co-plotter Jack Kirby's Fantastic Four originated in a Cold War culture that led their creators to revise the superhero conventions of previous eras to better reflect the psychological spirit of their age. Eschewing such comic-book tropes as secret identities and even costumes at first, having a monster as one of the heroes, and having its characters bicker and complain in what was later called a "superheroes in the real world" approach, the series represented a change that proved to be a great success.
Try to answer this question if possible: The emphasis on relatable settings and character motivations in Marvel's 1960s comics is called what?
Answer: "superheroes in the real world"


Problem: Genetic studies on Ashkenazim have been conducted to determine how much of their ancestry comes from the Levant, and how much derives from European populations. These studies—researching both their paternal and maternal lineages—point to a significant prevalence of ancient Levantine origins. But they have arrived at diverging conclusions regarding both the degree and the sources of their European ancestry. These diverging conclusions focus particularly on the extent of the European genetic origin observed in Ashkenazi maternal lineages.
Have studies on the genetics of the Ashkenazim come to similar or divergent conclusions regarding the degree and sources of their European ancestry?
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Answer:
they have arrived at diverging conclusions