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.
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Question: Paragraph: Airboats are a very popular means of transportation in marshy and / or shallow areas where a standard inboard or outboard engine with a submerged propeller would be impractical , most notably in the Florida Everglades but also in the Indian River Lagoon , the Kissimmee and St. Johns rivers , and the Mekong River and Delta , as well as the Louisiana bayous and Mesopotamian Marshes .
Question: what kind of boat is used in the everglades


Answer: Airboats


Question: Paragraph: Since October 2011 Carlyle has portrayed Mr. Gold ( Rumplestiltskin ) in the fantasy - drama television series Once Upon A Time . The character is a wizard , deal - maker , and master manipulator .
Question: who plays gold in once upon a time


Answer: Carlyle


Question: 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


Answer:
855