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 is the movie phantom thread based on?

Ex Output:
Charles Wilson Brega James


Ex Input:
Who arranged the periodic table by increasing atomic number?

Ex Output:
Henry Moseley


Ex Input:
What part of italy is the leaning tower of pisa in?

Ex Output:

Pisa