Problem: Determine the topic of the question-answer pair. Question: "when did world war 2 end?"; Answer: "World War II (WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945."? Topic:

A: World War II

Problem: Given the question: Determine the topic of the question-answer pair. Question: "how does a cat purr?"; Answer: "However, using a strict definition of purring that continuous sound production must alternate between pulmonic egressive and ingressive airstream (and usually go on for minutes), Peters (2002), in an exhaustive review of the scientific literature, reached the conclusion that until then only 'purring cats' (Felidae) and two species of genets , Genetta tigrina, and most likely also Genetta genetta, had been documented to purr."? Topic:
++++++++++++++++++++++++++++++++
The answer is:
Purr

input question: Determine the topic of the question-answer pair. Question: "where is hickory located nc?"; Answer: "Hickory is a city in Catawba County , with parts also in Burke County and Caldwell County ."? Topic:???
output answer: Hickory, North Carolina

Determine the topic of the question-answer pair. Question: "what does the president of the usa do?"; Answer: "The president leads the executive branch of the federal government and is the commander-in-chief of the United States Armed Forces ."? Topic:
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Answer: President of the United States

Q: Determine the topic of the question-answer pair. Question: "how many people live in atlanta georgia?"; Answer: "Atlanta (, stressed , locally ) is the capital of and the most populous city in the U.S. state of Georgia , with an estimated 2011 population of 432,427."? Topic:
A: Atlanta

[Q]: Determine the topic of the question-answer pair. Question: "where is the valley at in los angeles?"; Answer: "The San Fernando Valley (locally known as "The Valley") is an urbanized valley located in the Los Angeles metropolitan area of southern California , United States , defined by the mountains of the Transverse Ranges circling it."? Topic:
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[A]:
San Fernando Valley