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.

Example Input: The strain season 4 episode 10 air date?
Example Output: September 17, 2017

Example Input: When did the civil war end in sierra leone?
Example Output: 18 January 2002

Example Input: How many seasons are there in one tree hill?
Example Output:
9