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.

aillant-sur-tholon is a commune.
aillant-sur-tholon

michigan avenue is a major north-south street in chicago.
michigan avenue

the city of dubai is the largest and most populated city in the united arab emirates (uae) and the capital city of the emirate of dubai, uae.

dubai