Input: Read this: Many contemporary uses of uranium exploit its unique nuclear properties. Uranium-235 has the distinction of being the only naturally occurring fissile isotope. Uranium-238 is fissionable by fast neutrons, and is fertile, meaning it can be transmuted to fissile plutonium-239 in a nuclear reactor. Another fissile isotope, uranium-233, can be produced from natural thorium and is also important in nuclear technology. While uranium-238 has a small probability for spontaneous fission or even induced fission with fast neutrons, uranium-235 and to a lesser degree uranium-233 have a much higher fission cross-section for slow neutrons. In sufficient concentration, these isotopes maintain a sustained nuclear chain reaction. This generates the heat in nuclear power reactors, and produces the fissile material for nuclear weapons. Depleted uranium (238U) is used in kinetic energy penetrators and armor plating.
Question: What is the sole fissile isotope that occurs out of nature?

Output: unanswerable

Input: Read this: Admissions are characterized as "most selective" by U.S. News & World Report. There were 35,099 applications for the undergraduate class of 2020 (entering 2016), and 3,751 (10.7%) were admitted, making Northwestern one of the most selective schools in the United States. For freshmen enrolling in the class of 2019, the interquartile range (middle 50%) on the SAT was 690760 for critical reading and 710-800 for math, ACT composite scores for the middle 50% ranged from 3134, and 91% ranked in the top ten percent of their high school class.
Question: For freshman enrolling in the class of 2019, what was the interquartile range on the SAT for math?

Output: 710-800

Input: Read this: Criminal justice agencies in England and Wales use at least two separate racial/ethnic classification systems when reporting crime, as of 2010. One is the system used in the 2001 Census when individuals identify themselves as belonging to a particular ethnic group: W1 (White-British), W2 (White-Irish), W9 (Any other white background); M1 (White and black Caribbean), M2 (White and black African), M3 (White and Asian), M9 (Any other mixed background); A1 (Asian-Indian), A2 (Asian-Pakistani), A3 (Asian-Bangladeshi), A9 (Any other Asian background); B1 (Black Caribbean), B2 (Black African), B3 (Any other black background); O1 (Chinese), O9 (Any other). The other is categories used by the police when they visually identify someone as belonging to an ethnic group, e.g. at the time of a stop and search or an arrest: White North European (IC1), White South European (IC2), Black (IC3), Asian (IC4), Chinese, Japanese, or South East Asian (IC5), Middle Eastern (IC6), and Unknown (IC0). "IC" stands for "Identification Code;" these items are also referred to as Phoenix classifications. Officers are instructed to "record the response that has been given" even if the person gives an answer which may be incorrect; their own perception of the person's ethnic background is recorded separately. Comparability of the information being recorded by officers was brought into question by the Office for National Statistics (ONS) in September 2007, as part of its Equality Data Review; one problem cited was the number of reports that contained an ethnicity of "Not Stated."
Question: How many separate classification systems do agencies in England and Wales use?

Output: at least two

Input: Read this: In 1838 with the amount of smuggled opium entering China approaching 1,400 tons a year, the Chinese imposed a death penalty for opium smuggling and sent a Special Imperial Commissioner, Lin Zexu, to curb smuggling. This resulted in the First Opium War (183942). After the war Hong Kong island was ceded to Britain under the Treaty of Nanking and the Chinese market opened to the opium traders of Britain and other nations. The Jardines and Apcar and Company dominated the trade, although P&O also tried to take a share. A Second Opium War fought by Britain and France against China lasted from 1856 until 1860 and led to the Treaty of Tientsin, which legalised the importation of opium. Legalisation stimulated domestic Chinese opium production and increased the importation of opium from Turkey and Persia. This increased competition for the Chinese market led to India reducing its opium output and diversifying its exports.
Question: What was the sentence for smuggling opium into Egypt in 1838?

Output:
unanswerable