Given a passage and a question, find the answer to the question based on the passage. The answer should consist of only one word that lies in the span of only one of the sentences in the passage.

[Q]: Paragraph: Virginia City sprang up as a boomtown with the 1859 discovery of the Comstock Lode , the first major silver deposit discovery in the United States , with numerous mines opening . At the city 's peak of population in the mid-1870s , it had an estimated 25,000 residents . The mines ' output declined after 1878 , and the city itself declined as a result . As of the 2010 Census the population of Virginia City was about 855 , and that of Storey County 4,000 .
Question: what's the population of virginia city nevada

[A]: 855


[Q]: Paragraph: The European Union is a sui generis supranational union possessing `` country - like '' characteristics . The entity is composed of 28 member countries . Its population density has been estimated at 116 people per km , and it would be ranked 95th if it were included in the list . ( population : 506,913,394 on January 1 , 2014 , area : 4,324,782 km ) . See also : List of regional organizations by population . The most densely populated sovereign nation is Monaco , with a population density of 18,713 people / km . Area includes land and water .
Question: country with highest population density per square mile

[A]: Monaco


[Q]: Paragraph: Neck pain ( or cervicalgia ) is a common problem , with two - thirds of the population having neck pain at some point in their lives .
Question: what is the medical term for neck pain

[A]:
cervicalgia