Problem: Please answer a question about the following article about Nutrition:
As cellular metabolism/energy production requires oxygen, potentially damaging (e.g., mutation causing) compounds known as free radicals can form. Most of these are oxidizers (i.e., acceptors of electrons) and some react very strongly. For the continued normal cellular maintenance, growth, and division, these free radicals must be sufficiently neutralized by antioxidant compounds. Recently, some researchers suggested an interesting theory of evolution of dietary antioxidants. Some are produced by the human body with adequate precursors (glutathione, Vitamin C), and those the body cannot produce may only be obtained in the diet via direct sources (Vitamin C in humans, Vitamin A, Vitamin K) or produced by the body from other compounds (Beta-carotene converted to Vitamin A by the body, Vitamin D synthesized from cholesterol by sunlight). Phytochemicals (Section Below) and their subgroup, polyphenols, make up the majority of antioxidants; about 4,000 are known. Different antioxidants are now known to function in a cooperative network. For example, Vitamin C can reactivate free radical-containing glutathione or Vitamin E by accepting the free radical itself. Some antioxidants are more effective than others at neutralizing different free radicals. Some cannot neutralize certain free radicals. Some cannot be present in certain areas of free radical development (Vitamin A is fat-soluble and protects fat areas, Vitamin C is water-soluble and protects those areas). When interacting with a free radical, some antioxidants produce a different free radical compound that is less dangerous or more dangerous than the previous compound. Having a variety of antioxidants allows any byproducts to be safely dealt with by more efficient antioxidants in neutralizing a free radical's butterfly effect.
Which area of the body does vitamin A protect?
A: fat areas
Problem: Please answer a question about the following article about IBM:
The birthplace of IBM, Endicott, suffered pollution for decades, however. IBM used liquid cleaning agents in circuit board assembly operation for more than two decades, and six spills and leaks were recorded, including one leak in 1979 of 4,100 gallons from an underground tank. These left behind volatile organic compounds in the town's soil and aquifer. Traces of volatile organic compounds have been identified in Endicott’s drinking water, but the levels are within regulatory limits. Also, from 1980, IBM has pumped out 78,000 gallons of chemicals, including trichloroethane, freon, benzene and perchloroethene to the air and allegedly caused several cancer cases among the townspeople. IBM Endicott has been identified by the Department of Environmental Conservation as the major source of pollution, though traces of contaminants from a local dry cleaner and other polluters were also found. Remediation and testing are ongoing, however according to city officials, tests show that the water is safe to drink.
How many gallons of liquid cleaning agent leaked from an IBM facility in 1979?
A: 4,100 gallons
Problem: Please answer a question about the following article about Sino-Tibetan relations during the Ming dynasty:
With the death of Zhengde and ascension of Jiajing, the politics at court shifted in favor of the Neo-Confucian establishment which not only rejected the Portuguese embassy of Fernão Pires de Andrade (d. 1523), but had a predisposed animosity towards Tibetan Buddhism and lamas. Evelyn S. Rawski, a professor in the Department of History of the University of Pittsburgh, writes that the Ming's unique relationship with Tibetan prelates essentially ended with Jiajing's reign while Ming influence in the Amdo region was supplanted by the Mongols.
Who was Zhengde's successor? 
A: Jiajing
Problem: Please answer a question about the following article about The Legend of Zelda: Twilight Princess:
When Link enters the Twilight Realm, the void that corrupts parts of Hyrule, he transforms into a wolf.[h] He is eventually able to transform between his Hylian and wolf forms at will. As a wolf, Link loses the ability to use his sword, shield, or any secondary items; he instead attacks by biting, and defends primarily by dodging attacks. However, "Wolf Link" gains several key advantages in return—he moves faster than he does as a human (though riding Epona is still faster) and digs holes to create new passages and uncover buried items, and has improved senses, including the ability to follow scent trails.[i] He also carries Midna, a small imp-like creature who gives him hints, uses an energy field to attack enemies, helps him jump long distances, and eventually allows Link to "warp" to any of several preset locations throughout the overworld.[j] Using Link's wolf senses, the player can see and listen to the wandering spirits of those affected by the Twilight, as well as hunt for enemy ghosts named Poes.[k]
Hostile spirits are also known as what?
A:
Poes