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.

Ex Input:
Who's the best selling artist of all time?

Ex Output:
The Beatles


Ex Input:
Who abducted helen and led her to troy?

Ex Output:
Paris of Troy


Ex Input:
Who wrote the book journey to the center of the earth?

Ex Output:

Jules Verne