Input: Read this: The beginning of the Neolithic culture is considered to be in the Levant (Jericho, modern-day West Bank) about 10,200 8,800 BC. It developed directly from the Epipaleolithic Natufian culture in the region, whose people pioneered the use of wild cereals, which then evolved into true farming. The Natufian period was between 12,000 and 10,200 BC, and the so-called "proto-Neolithic" is now included in the Pre-Pottery Neolithic (PPNA) between 10,200 and 8,800 BC. As the Natufians had become dependent on wild cereals in their diet, and a sedentary way of life had begun among them, the climatic changes associated with the Younger Dryas are thought to have forced people to develop farming.
Question: What food item was the key to the evolution of farming?

Output: wild cereals

Input: Read this: 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.
Question: In order for the body to function normally, what must be used to neutralize free radicals?

Output: antioxidant compounds

Input: Read this: Jehovah's Witnesses are organized hierarchically, in what the leadership calls a "theocratic organization", reflecting their belief that it is God's "visible organization" on earth. The organization is led by the Governing Bodyan all-male group that varies in size, but since early 2014 has comprised seven members,[note 1] all of whom profess to be of the "anointed" class with a hope of heavenly lifebased in the Watch Tower Society's Brooklyn headquarters. There is no election for membership; new members are selected by the existing body. Until late 2012, the Governing Body described itself as the representative and "spokesman" for God's "faithful and discreet slave class" (approximately 10,000 self-professed "anointed" Jehovah's Witnesses). At the 2012 Annual Meeting of the Watch Tower Society, the "faithful and discreet slave" was defined as referring to the Governing Body only. The Governing Body directs several committees that are responsible for administrative functions, including publishing, assembly programs and evangelizing activities. It appoints all branch committee members and traveling overseers, after they have been recommended by local branches, with traveling overseers supervising circuits of congregations within their jurisdictions. Traveling overseers appoint local elders and ministerial servants, and while branch offices may appoint regional committees for matters such as Kingdom Hall construction or disaster relief.
Question: How many "anointed" Jehovah's Witnesses were there as of 2014?

Output: unanswerable

Input: Read this: According to a 2001 report from The World Factbook by CIA, about 50% of Nigeria's population is Muslim, 40% are Christians and 10% adhere to local religions. But in some recent report, the Christian population is now sightly larger than the Muslim population. An 18 December 2012 report on religion and public life by the Pew Research Center stated that in 2010, 49.3 percent of Nigeria's population was Christian, 48.8 percent was Muslim, and 1.9 percent were followers of indigenous and other religions, or unaffiliated. Additionally, the 2010s census of Association of Religion Data Archives has reported that 46.5 percent of the total population is Christian, slightly bigger than the Muslim population of 45.5 percent, and that 7.7 percent are members of other religious groups.
Question: In 2001, what percent of Nigeria's population followed local religions?

Output:
10%