Input: Read this: By 1900, 7,531 people lived in the city. The population increased gradually to 13,913 in 1910. At about this time, the U.S. Veterans Administration had begun construction on the present Veterans Hospital. Many veterans who had been gassed in World War I and were in need of respiratory therapy began coming to Tucson after the war, due to the clean dry air. Over the following years the city continued to grow, with the population increasing to 20,292 in 1920 and 36,818 in 1940. In 2006 the population of Pima County, in which Tucson is located, passed one million while the City of Tucson's population was 535,000.
Question: What was Tucson's population in 1940?

Output: 36,818

QUES: Borders Books, started in Ann Arbor, was opened by brothers Tom and Louis Borders in 1971 with a stock of used books. The Borders chain was based in the city, as was its flagship store until it closed in September 2011. Domino's Pizza's headquarters is near Ann Arbor on Domino's Farms, a 271-acre (110 ha) Frank Lloyd Wright-inspired complex just northeast of the city. Another Ann Arbor-based company is Zingerman's Delicatessen, which serves sandwiches and has developed businesses under a variety of brand names. Zingerman's has grown into a family of companies which offers a variety of products (bake shop, mail order, creamery, coffee) and services (business education). Flint Ink Corp., another Ann Arbor-based company, was the world's largest privately held ink manufacturer until it was acquired by Stuttgart-based XSYS Print Solutions in October 2005. Avfuel, a global supplier of aviation fuels and services, is also headquartered in Ann Arbor. Aastrom Biosciences, a publicly traded company that develops stem cell treatments for cardiovascular diseases, is headquartered in Ann Arbor.

What is the world's largest privately held ink manufacturer?
What is the answer?
ANS: unanswerable

QUES: Families and households were still largely independent economically, and the household was probably the center of life. However, excavations in Central Europe have revealed that early Neolithic Linear Ceramic cultures ("Linearbandkeramik") were building large arrangements of circular ditches between 4800 BC and 4600 BC. These structures (and their later counterparts such as causewayed enclosures, burial mounds, and henge) required considerable time and labour to construct, which suggests that some influential individuals were able to organise and direct human labour though non-hierarchical and voluntary work remain possibilities.
What features about the individuals suggests that it was built by people under a leader's command?

ANS: unanswerable

In some languages, such as English, aspiration is allophonic. Stops are distinguished primarily by voicing, and voiceless stops are sometimes aspirated, while voiced stops are usually unaspirated.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Voiceless languages are sometimes what?
Ah, so.. unanswerable

Question: Reapportionment following the 2010 United States Census gave the state two more seats in the House of Representatives. The legislature's redistricting, announced in 2012, was quickly challenged in court, on the grounds that it had unfairly benefited Republican interests. In 2015, the Florida Supreme Court ruled on appeal that the congressional districts had to be redrawn because of the legislature's violation of the Fair District Amendments to the state constitution passed in 2010; it accepted a new map in early December 2015.
Try to answer this question if possible: What was challenged in 2013?
Answer: unanswerable

QUES: The ideas of the Italian Renaissance were slow to cross the Alps into northern Europe, but important artistic innovations were made also in the Low Countries. Though not as previously believed the inventor of oil painting, Jan van Eyck was a champion of the new medium, and used it to create works of great realism and minute detail. The two cultures influenced each other and learned from each other, but painting in the Netherlands remained more focused on textures and surfaces than the idealized compositions of Italy.
What painter wasn't an early champion of oil as a medium in painting?

ANS:
unanswerable