instruction:
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.
question:
Who is the original singer of nothing compares to you?
answer:
Prince Rogers Nelson


question:
When did the civil war end in sierra leone?
answer:
18 January 2002


question:
Who does the voice of steve smith on american dad?
answer:

Scott Christopher Grimes