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 nigeria become a federation of 19 states?
Example Output: 1976

Example Input: When was the song you're so vain written?
Example Output: 1971

Example Input: How many employees does department of education have?
Example Output:
3912