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.

Where does the earth's magnetic field originate?
Earth's core

Who played charlie in the chocolate factory 2005?
Alfred Thomas Highmore

Where does the curse of downers grove take place?

Downers Grove, Illinois