TASK DEFINITION: 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.
PROBLEM: Where does the earth's magnetic field originate?

SOLUTION: Earth's core

PROBLEM: Who was the 20th prime minister of canada?

SOLUTION: Jean Chretien

PROBLEM: Who plays the voice of bob's burgers?

SOLUTION:
H. Jon Benjamin