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 Q]: Who is the movie phantom thread based on?
[EX A]: Charles Wilson Brega James

[EX Q]: Who helped build mission san francisco de asis?
[EX A]: Fray Pedro Combón

[EX Q]: The point of concurrence of medians is called?
[EX A]:
centroid