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 was the last time the us constitution changed?
Example Output: May 5, 1992

Example Input: Who played the first lady in olympus has fallen?
Example Output: Ashley Judd

Example Input: What flag has a blue triangle and red and white stripes?
Example Output:
Puerto Rico and Ohio