This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Example Input: Passage: 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: What is another term that can be used to describe "potentially damaging" compounds?
Example Output: mutation causing

Example Input: Passage: Uranium is a naturally occurring element that can be found in low levels within all rock, soil, and water. Uranium is the 51st element in order of abundance in the Earth's crust. Uranium is also the highest-numbered element to be found naturally in significant quantities on Earth and is almost always found combined with other elements. Along with all elements having atomic weights higher than that of iron, it is only naturally formed in supernovae. The decay of uranium, thorium, and potassium-40 in the Earth's mantle is thought to be the main source of heat that keeps the outer core liquid and drives mantle convection, which in turn drives plate tectonics. Question: Where does uranium rank among elements in terms of its abundance in the Earth's crust?
Example Output: 51st

Example Input: Passage: The nationalization announcement was greeted very emotionally by the audience and, throughout the Arab world, thousands entered the streets shouting slogans of support. US ambassador Henry A. Byroade stated, "I cannot overemphasize [the] popularity of the Canal Company nationalization within Egypt, even among Nasser's enemies." Egyptian political scientist Mahmoud Hamad wrote that, prior to 1956, Nasser had consolidated control over Egypt's military and civilian bureaucracies, but it was only after the canal's nationalization that he gained near-total popular legitimacy and firmly established himself as the "charismatic leader" and "spokesman for the masses not only in Egypt, but all over the Third World". According to Aburish, this was Nasser's largest pan-Arab triumph at the time and "soon his pictures were to be found in the tents of Yemen, the souks of Marrakesh, and the posh villas of Syria". The official reason given for the nationalization was that funds from the canal would be used for the construction of the dam in Aswan. That same day, Egypt closed the canal to Israeli shipping. Question: Where was Nasser believed to be a spokesman for the poor and oppressed?
Example Output:
not only in Egypt, but all over the Third World

