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: Who is the best selling novelist of all time?
Example Output: Dame Agatha Mary Clarissa Christie, Lady Mallowan, DBE

Example Input: Nfl teams who never made it to the superbowl?
Example Output: Browns, Lions, Jaguars, and Texans

Example Input: Who established the first reconstruction plan after the civil war?
Example Output:
Andrew Johnson