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: Which african american led the back to africa movement during the early 20th century?
Example Output: Marcus Mosiah Garvey Jr.

Example Input: Where does corn beef come from what animal?
Example Output: Cattle

Example Input: The early work into the phenomenon called instinctive drift was performed by?
Example Output:
B.F. Skinner