Input: Read this: To the west, settlements in the Zagros basin experience lower temperatures, severe winters with below zero average daily temperatures and heavy snowfall. The eastern and central basins are arid, with less than 200 mm (7.9 in) of rain, and have occasional deserts. Average summer temperatures rarely exceed 38 C (100.4 F). The coastal plains of the Persian Gulf and Gulf of Oman in southern Iran have mild winters, and very humid and hot summers. The annual precipitation ranges from 135 to 355 mm (5.3 to 14.0 in).
Question: What is the coastal plains of Iran's annual precipitation ranges?

Output: 135 to 355 mm (5.3 to 14.0 in)

QUES: The domination of Estonia after the Northern Crusades, from the 13th century to 1918 by Denmark, Germany, Sweden, and Russia delayed indigenous literacy in Estonia.[citation needed]

When didn't the Northern Crusades happen?
What is the answer?
ANS: unanswerable

QUES: Reacting to media criticism of Michelle Obama during the 2008 presidential election, Charles Kenzie Steele, Jr., CEO of the Southern Christian Leadership Conference said, "Why are they attacking Michelle Obama, and not really attacking, to that degree, her husband? Because he has no slave blood in him." He later claimed his comment was intended to be "provocative" but declined to expand on the subject. Former Secretary of State Condoleezza Rice (who was famously mistaken for a "recent American immigrant" by French President Nicolas Sarkozy), said "descendants of slaves did not get much of a head start, and I think you continue to see some of the effects of that." She has also rejected an immigrant designation for African Americans and instead prefers the term "black" or "white" .
Who claimed that descendants of slaves had a good head start?

ANS: unanswerable

New York City is supplied with drinking water by the protected Catskill Mountains watershed. As a result of the watershed's integrity and undisturbed natural water filtration system, New York is one of only four major cities in the United States the majority of whose drinking water is pure enough not to require purification by water treatment plants. The Croton Watershed north of the city is undergoing construction of a US$3.2 billion water purification plant to augment New York City's water supply by an estimated 290 million gallons daily, representing a greater than 20% addition to the city's current availability of water. The ongoing expansion of New York City Water Tunnel No. 3, an integral part of the New York City water supply system, is the largest capital construction project in the city's history.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): How much is being spent on a water purification plant at the Croton Watershed?
Ah, so.. US$3.2 billion

Question: The Franco-Prussian War or Franco-German War (German: Deutsch-Franzosischer Krieg, lit. German-French War, French: Guerre franco-allemande, lit. Franco-German War), often referred to in France as the War of 1870 (19 July 1870 10 May 1871), was a conflict between the Second French Empire and the German states of the North German Confederation led by the Kingdom of Prussia. The conflict was caused by Prussian ambitions to extend German unification. Some historians argue that the Prussian chancellor Otto von Bismarck planned to provoke a French attack in order to draw the southern German statesBaden, Wurttemberg, Bavaria and Hesse-Darmstadtinto an alliance with the North German Confederation dominated by Prussia, while others contend that Bismarck did not plan anything and merely exploited the circumstances as they unfolded.
Try to answer this question if possible: What was the war often referred to in France as?
Answer: the War of 1870

Question: The Northwestern library system consists of four libraries on the Evanston campus including the present main library, University Library and the original library building, Deering Library; three libraries on the Chicago campus; and the library affiliated with Garrett-Evangelical Theological Seminary. The University Library contains over 4.9 million volumes, 4.6 million microforms, and almost 99,000 periodicals making it (by volume) the 30th-largest university library in North America and the 10th-largest library among private universities. Notable collections in the library system include the Melville J. Herskovits Library of African Studies, the largest Africana collection in the world, an extensive collection of early edition printed music and manuscripts as well as late-modern works, and an art collection noted for its 19th and 20th-century Western art and architecture periodicals. The library system participates with 15 other universities in digitizing its collections as a part of the Google Book Search project. The Mary and Leigh Block Museum of Art is a major art museum in Chicago, containing more than 4,000 works in its permanent collection as well as dedicating a third of its space to temporary and traveling exhibitions.
Try to answer this question if possible: How many volumes does the College Library contain?
Answer:
unanswerable