Instructions: 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.
Input: 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

Output:
Airboats