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.
One example is below.
Q: fear of needles (medically known as belomophobia) is a term used to describe a large fear (phobia) of medical procedures involving needles.
A: fear of needles
Rationale: in this statement, we are talking about the fear of needles hence the output of the statement is fear of needles
Q: chemilly-sur-serein is a commune.
A:
chemilly-sur-serein