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.

[EX Q]: the viverridae is a family of small to medium-sized mammals, the viverrids.
[EX A]: viverridae

[EX Q]: bath rugby are a rugby club based in bath, england who play in the aviva premiership.
[EX A]: bath rugby

[EX Q]: graham chapman (8 january 1941 4 october 1989) was a british actor, comedian and writer.
[EX A]:
graham chapman