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: When did the first tim hortons open in the usa?
Example Output: 1981

Example Input: Who is the founder of babylon as recorded in the bible?
Example Output: Nimrod

Example Input: Who won the battle of the bay of pigs?
Example Output:
Cuban armed forces under Castro