The problem: Answer a question about this article:
The figure of the "tragic octoroon" was a stock character of abolitionist literature: a mixed-race woman raised as if a white woman in her white father's household, until his bankruptcy or death has her reduced to a menial position She may even be unaware of her status before being reduced to victimization. The first character of this type was the heroine of Lydia Maria Child's "The Quadroons" (1842), a short story. This character allowed abolitionists to draw attention to the sexual exploitation in slavery and, unlike portrayals of the suffering of the field hands, did not allow slaveholders to retort that the sufferings of Northern mill hands were no easier. The Northern mill owner would not sell his own children into slavery.
Who used the figure of the tragic octoroon?
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The answer: abolitionists

The problem: Answer a question about this article:
As a result of the now near-universal human reliance upon agriculture, the few contemporary hunter-gatherer cultures usually live in areas unsuitable for agricultural use.
Who lives in areas not usable for agriculture?
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The answer: hunter-gatherer cultures

The problem: Answer a question about this article:
As a doctoral student at Germany's University of Erlangen-Nuremberg, Karlheinz Brandenburg began working on digital music compression in the early 1980s, focusing on how people perceive music. He completed his doctoral work in 1989. MP3 is directly descended from OCF and PXFM, representing the outcome of the collaboration of Brandenburgworking as a postdoc at AT&T-Bell Labs with James D. Johnston ("JJ") of AT&T-Bell Labswith the Fraunhofer Institut for Integrated Circuits, Erlangen, with relatively minor contributions from the MP2 branch of psychoacoustic sub-band coders. In 1990, Brandenburg became an assistant professor at Erlangen-Nuremberg. While there, he continued to work on music compression with scientists at the Fraunhofer Society (in 1993 he joined the staff of the Fraunhofer Institute).
What kind of student was Karlheinz Brandenburg?
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The answer: doctoral

The problem: Answer a question about this article:
On January 7, 2012, Beyonce gave birth to her first child, a daughter, Blue Ivy Carter, at Lenox Hill Hospital in New York. Five months later, she performed for four nights at Revel Atlantic City's Ovation Hall to celebrate the resort's opening, her first performances since giving birth to Blue Ivy.
What was the child's name?
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The answer:
Blue Ivy Carter