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.
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Question: Are radio waves electromagnetic waves or sound waves?

Answer: electromagnetic waves


Question: Who wrote sitting by the dock of the bay?

Answer: Otis Redding and Steve Cropper


Question: Who was carol from new york housewives married to?

Answer:
Anthony Radziwiłł