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 diamond cutter is a wrestling finishing move done by the wrestler diamond dallas page.
[EX A]: diamond cutter

[EX Q]: police academy: the series, also known as police academy: the animated series, is an popular 1988 american animated television series based on the "police academy" series of films.
[EX A]: police academy: the animated series

[EX Q]: trippin' is a 2005 television series about ecology.
[EX A]:
trippin'