Instructions: Generate a topic word for the given sentence. A topic word is usually the name of a person, place, animal, concept or object the sentence is focusing on.
Input: ithaca tompkins regional airport is a county-owned public-use airport three miles (5 km) northeast of the central business district of ithaca, the county seat and largest city in tompkins county, new york, united states.
Output:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
ithaca tompkins regional airport