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.

Example Input: Who discovered the center of the milky way galaxy?
Example Output: a team of radio astronomers, led by Joseph Lade Pawsey

Example Input: Who became famous by singing the blues during the jazz age?
Example Output: Empress of the Blues

Example Input: When is the last time liverpool won the premier league?
Example Output:
1989-90