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:
Are radio waves electromagnetic waves or sound waves?
answer:
electromagnetic waves


question:
Who does kp play for in the big bash?
answer:
Melbourne Stars


question:
Who is mariah carey singing about in we belong together?
answer:

Thomas Daniel Mottola