In this task, you're given an open-domain question. Your task is to provide an answer to the given question. There is only one unique answer for each question. Your answer should be short, and refer to an entity, date, number, etc. Do not put your answer in the context of a sentence.

Who wrote the song blowin in the wind?
Bob Dylan

Who won the civil wars of the warring states period in order to become the first emperor of china?
The first Sovereign Emperor of Qin"

When did ivan the gorilla leave the b i?

1994