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 original singer of nothing compares to you?
Example Output: Prince Rogers Nelson

Example Input: Rotating part of dc motor is known as?
Example Output: armature

Example Input: Who wrote the song the man who sold the world?
Example Output:
David Robert Jones