Problem: Literature:

As a more urban culture developed, academies provided a means of transmission for speculative and philosophical literature in early civilizations, resulting in the prevalence of literature in Ancient China, Ancient India, Persia and Ancient Greece and Rome. Many works of earlier periods, even in narrative form, had a covert moral or didactic purpose, such as the Sanskrit Panchatantra or the Metamorphoses of Ovid. Drama and satire also developed as urban culture provided a larger public audience, and later readership, for literary production. Lyric poetry (as opposed to epic poetry) was often the speciality of courts and aristocratic circles, particularly in East Asia where songs were collected by the Chinese aristocracy as poems, the most notable being the Shijing or Book of Songs. Over a long period, the poetry of popular pre-literate balladry and song interpenetrated and eventually influenced poetry in the literary medium.

Besides entertainment or informational value, classic literature also possessed what quality?
---
A: a covert moral or didactic purpose


Problem: Interstate 10, which runs southeast to northwest through town, connects Tucson to Phoenix to the northwest on the way to its western terminus in Santa Monica, California, and to Las Cruces, New Mexico and El Paso, Texas toward its eastern terminus in Jacksonville, Florida. I-19 runs south from Tucson toward Nogales and the U.S.-Mexico border. I-19 is the only Interstate highway that uses "kilometer posts" instead of "mileposts", although the speed limits are marked in miles per hour instead of kilometers per hour.
Are the speed limits on I-19 marked in miles or kilometers?
---
Answer: miles


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Copper has been used since ancient times as a durable, corrosion resistant, and weatherproof architectural material. Roofs, flashings, rain gutters, downspouts, domes, spires, vaults, and doors have been made from copper for hundreds or thousands of years. Copper's architectural use has been expanded in modern times to include interior and exterior wall cladding, building expansion joints, radio frequency shielding, and antimicrobial indoor products, such as attractive handrails, bathroom fixtures, and counter tops. Some of copper's other important benefits as an architectural material include its low thermal movement, light weight, lightning protection, and its recyclability.
How long has copper been banned in building construction?
A: unanswerable


Context and question: The element was probably named by the alchemist Paracelsus after the German word Zinke (prong, tooth). German chemist Andreas Sigismund Marggraf is credited with discovering pure metallic zinc in 1746. Work by Luigi Galvani and Alessandro Volta uncovered the electrochemical properties of zinc by 1800. Corrosion-resistant zinc plating of iron (hot-dip galvanizing) is the major application for zinc. Other applications are in batteries, small non-structural castings, and alloys, such as brass. A variety of zinc compounds are commonly used, such as zinc carbonate and zinc gluconate (as dietary supplements), zinc chloride (in deodorants), zinc pyrithione (anti-dandruff shampoos), zinc sulfide (in luminescent paints), and zinc methyl or zinc diethyl in the organic laboratory.
What is a common use for zinc chloride?
Answer: deodorants


Question: In 1785, the assembly of the Congress of the Confederation made New York the national capital shortly after the war. New York was the last capital of the U.S. under the Articles of Confederation and the first capital under the Constitution of the United States. In 1789, the first President of the United States, George Washington, was inaugurated; the first United States Congress and the Supreme Court of the United States each assembled for the first time, and the United States Bill of Rights was drafted, all at Federal Hall on Wall Street. By 1790, New York had surpassed Philadelphia as the largest city in the United States.
Is there an answer to this question: By which year, did New York City become the largest city in the United States?

Answer: 1790


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
The National Library of Nepal is located in Patan. It is the largest library in the country with more than 70,000 books. English, Nepali, Sanskrit, Hindi, and Nepal Bhasa books are found here. The library is in possession of rare scholarly books in Sanskrit and English dating from the 17th century AD. Kathmandu also contains the Kaiser Library, located in the Kaiser Mahal on the ground floor of the Ministry of Education building. This collection of around 45,000 books is derived from a personal collection of Kaiser Shamsher Jang Bahadur Rana. It covers a wide range of subjects including history, law, art, religion, and philosophy, as well as a Sanskrit manual of Tantra, which is believed to be over 1,000 years old. The 2015 earthquake caused severe damage to the Ministry of Education building, and the contents of the Kaiser Library have been temporarily relocated.
Along with Hindi, Sanskrit, Nepali and English, the National Library contains books in what language?
A:
Nepal Bhasa