Input: Read this: The gas centrifuge process, where gaseous uranium hexafluoride (UF
6) is separated by the difference in molecular weight between 235UF6 and 238UF6 using high-speed centrifuges, is the cheapest and leading enrichment process. The gaseous diffusion process had been the leading method for enrichment and was used in the Manhattan Project. In this process, uranium hexafluoride is repeatedly diffused through a silver-zinc membrane, and the different isotopes of uranium are separated by diffusion rate (since uranium 238 is heavier it diffuses slightly slower than uranium-235). The molecular laser isotope separation method employs a laser beam of precise energy to sever the bond between uranium-235 and fluorine. This leaves uranium-238 bonded to fluorine and allows uranium-235 metal to precipitate from the solution. An alternative laser method of enrichment is known as atomic vapor laser isotope separation (AVLIS) and employs visible tunable lasers such as dye lasers. Another method used is liquid thermal diffusion.
Question: How does the height of uranium-238 compare to that of uranium-235?

Output: unanswerable

Input: Read this: Both low-cost and luxury housing were built by the government in the Brasilia. The residential zones of the inner city are arranged into superquadras ("superblocks"): groups of apartment buildings along with a prescribed number and type of schools, retail stores, and open spaces. At the northern end of Lake Paranoa, separated from the inner city, is a peninsula with many fashionable homes, and a similar city exists on the southern lakeshore. Originally the city planners envisioned extensive public areas along the shores of the artificial lake, but during early development private clubs, hotels, and upscale residences and restaurants gained footholds around the water. Set well apart from the city are satellite cities, including Gama, Ceilandia, Taguatinga, Nucleo Bandeirante, Sobradinho, and Planaltina. These cities, with the exception of Gama and Sobradinho were not planned.
Question: What is the definition of a Nucleo?

Output: unanswerable

Input: Read this: Among the reasons this speech was so greatly admired was its passage on Lord Bathurst (16841775); Burke describes an angel in 1704 prophesying to Bathurst the future greatness of England and also of America: "Young man, There is America which at this day serves little more than to amuse you with stories of savage men, and uncouth manners; yet shall, before you taste of death, shew itself equal to the whole of that commerce which now attracts the envy of the world". Samuel Johnson was so irritated at hearing it continually praised, that he made a parody of it, where the devil appears to a young Whig and predicts that in short time, Whiggism will poison even the paradise of America!
Question: When did an angel supposedly speak to Bathurst?

Output: 1704

Input: Read this: General Electric switched to use the ASA scale in 1946. Meters manufactured since February 1946 were equipped with the ASA scale (labeled "Exposure Index") already. For some of the older meters with scales in "Film Speed" or "Film Value" (e.g. models DW-48, DW-49 as well as early DW-58 and GW-68 variants), replaceable hoods with ASA scales were available from the manufacturer. The company continued to publish recommended film values after that date, however, they were now aligned to the ASA scale.
Question: How was the ASA scale shown on models built after 1946?

Output:
labeled "Exposure Index"