Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
By 6000 BCE predynastic Egyptians in the southwestern corner of Egypt were herding cattle and constructing large buildings. Subsistence in organized and permanent settlements in predynastic Egypt by the middle of the 6th millennium BCE centered predominantly on cereal and animal agriculture: cattle, goats, pigs and sheep. Metal objects replaced prior ones of stone. Tanning of animal skins, pottery and weaving were commonplace in this era also. There are indications of seasonal or only temporary occupation of the Al Fayyum in the 6th millennium BCE, with food activities centering on fishing, hunting and food-gathering. Stone arrowheads, knives and scrapers from the era are commonly found. Burial items included pottery, jewelry, farming and hunting equipment, and assorted foods including dried meat and fruit. Burial in desert environments appears to enhance Egyptian preservation rites, and dead were buried facing due west.
What replaced metal objects?
A: unanswerable

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The campus is home to several museums containing exhibits from many different fields of study. BYU's Museum of Art, for example, is one of the largest and most attended art museums in the Mountain West. This Museum aids in academic pursuits of students at BYU via research and study of the artworks in its collection. The Museum is also open to the general public and provides educational programming. The Museum of Peoples and Cultures is a museum of archaeology and ethnology. It focuses on native cultures and artifacts of the Great Basin, American Southwest, Mesoamerica, Peru, and Polynesia. Home to more than 40,000 artifacts and 50,000 photographs, it documents BYU's archaeological research. The BYU Museum of Paleontology was built in 1976 to display the many fossils found by BYU's Dr. James A. Jensen. It holds many artifacts from the Jurassic Period (210-140 million years ago), and is one of the top five collections in the world of fossils from that time period. It has been featured in magazines, newspapers, and on television internationally. The museum receives about 25,000 visitors every year. The Monte L. Bean Life Science Museum was formed in 1978. It features several forms of plant and animal life on display and available for research by students and scholars.
How many visitors does BYU Museum of Paleontology receive each year?
A: about 25,000

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Scientists do not know the exact cause of sexual orientation, but they believe that it is caused by a complex interplay of genetic, hormonal, and environmental influences. They favor biologically-based theories, which point to genetic factors, the early uterine environment, both, or the inclusion of genetic and social factors. There is no substantive evidence which suggests parenting or early childhood experiences play a role when it comes to sexual orientation. Research over several decades has demonstrated that sexual orientation ranges along a continuum, from exclusive attraction to the opposite sex to exclusive attraction to the same sex.
IS there evidence that parenting and/or childhood play a role in determining sexual orientation?
A: no substantive evidence which suggests parenting or early childhood experiences play a role

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U.S. President Barack Obama has rarely used the term, but in his inaugural address on 20 January 2009, he stated "Our nation is at war, against a far-reaching network of violence and hatred." In March 2009 the Defense Department officially changed the name of operations from "Global War on Terror" to "Overseas Contingency Operation" (OCO). In March 2009, the Obama administration requested that Pentagon staff members avoid use of the term, instead using "Overseas Contingency Operation". Basic objectives of the Bush administration "war on terror", such as targeting al Qaeda and building international counterterrorism alliances, remain in place. In December 2012, Jeh Johnson, the General Counsel of the Department of Defense, stated that the military fight will be replaced by a law enforcement operation when speaking at Oxford University, predicting that al Qaeda will be so weakened to be ineffective, and has been "effectively destroyed", and thus the conflict will not be an armed conflict under international law. In May 2013, Obama stated that the goal is "to dismantle specific networks of violent extremists that threaten America"; which coincided with the U.S. Office of Management and Budget having changed the wording from "Overseas Contingency Operations" to "Countering Violent Extremism" in 2010.
Who defined the goal in a speech in May of 2012?
A:
unanswerable