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]: hop and go is a 1943 looney tunes short movie directed by u.s. corporal norman mccabe and released to movie theaters by rko radio pictures.
[EX A]: hop and go

[EX Q]: waiting for guffman is a musical mockumentary movie made in 1997.
[EX A]: waiting for guffman

[EX Q]: cherimoya is a sweet fruit that comes mostly from peru, ecuador, colombia and bolivia.
[EX A]:
cherimoya