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: Who plays skye in marvel agents of shield?

Answer: Chloe Bennet


Question: When was the first constitution of pakistan passed?

Answer: March 1956


Question: The set of frequencies produced by an excited state atom is called its?

Answer:
electromagnetic spectrum