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 did marlin and dory go to find nemo?
Sydney, Australia

When did the astros move to the american league?
2013

How many books are in the narnia series?

seven